diff --git a/src/view/AphrontDialogView.php b/src/view/AphrontDialogView.php
index 5b448678bb..686f97deb6 100644
--- a/src/view/AphrontDialogView.php
+++ b/src/view/AphrontDialogView.php
@@ -31,12 +31,20 @@ final class AphrontDialogView extends AphrontView {
     return $this->title;
   }
 
-  public function addSubmitButton($text = 'Okay') {
+  public function addSubmitButton($text = null) {
+    if (!$text) {
+      $text = pht('Okay');
+    }
+
     $this->submitButton = $text;
     return $this;
   }
 
-  public function addCancelButton($uri, $text = 'Cancel') {
+  public function addCancelButton($uri, $text = null) {
+    if (!$text) {
+      $text = pht('Cancel');
+    }
+
     $this->cancelURI = $uri;
     $this->cancelText = $text;
     return $this;
@@ -102,7 +110,7 @@ final class AphrontDialogView extends AphrontView {
 
     if (!$this->user) {
       throw new Exception(
-        "You must call setUser() when rendering an AphrontDialogView.");
+        pht("You must call setUser() when rendering an AphrontDialogView."));
     }
 
     $more = $this->class;
diff --git a/src/view/AphrontTagView.php b/src/view/AphrontTagView.php
index 514c8826f6..4db894f471 100644
--- a/src/view/AphrontTagView.php
+++ b/src/view/AphrontTagView.php
@@ -111,7 +111,8 @@ abstract class AphrontTagView extends AphrontView {
     if (!is_array($attributes)) {
       $class = get_class($this);
       throw new Exception(
-        "View '{$class}' did not return an array from getTagAttributes()!");
+        pht("View '%s' did not return an array from getTagAttributes()!",
+          $class));
     }
 
     $sigils = $this->sigils;
diff --git a/src/view/AphrontView.php b/src/view/AphrontView.php
index 59c7a2172a..7edaf02d95 100644
--- a/src/view/AphrontView.php
+++ b/src/view/AphrontView.php
@@ -22,7 +22,7 @@ abstract class AphrontView extends Phobject {
     if (!$this->canAppendChild()) {
       $class = get_class($this);
       throw new Exception(
-        "View '{$class}' does not support children.");
+        pht("View '%s' does not support children.", $class));
     }
     $this->children[] = $child;
     return $this;
diff --git a/src/view/control/AphrontAttachedFileView.php b/src/view/control/AphrontAttachedFileView.php
index 37668525ae..c889bcf7e5 100644
--- a/src/view/control/AphrontAttachedFileView.php
+++ b/src/view/control/AphrontAttachedFileView.php
@@ -30,7 +30,7 @@ final class AphrontAttachedFileView extends AphrontView {
         'target'  => '_blank',
       ),
       $file->getName());
-    $size = number_format($file->getByteSize()).' bytes';
+    $size = number_format($file->getByteSize()).' ' .pht('bytes');
 
     $remove = javelin_tag(
       'a',
diff --git a/src/view/control/AphrontCursorPagerView.php b/src/view/control/AphrontCursorPagerView.php
index ecfde94417..4b0d50d416 100644
--- a/src/view/control/AphrontCursorPagerView.php
+++ b/src/view/control/AphrontCursorPagerView.php
@@ -82,7 +82,7 @@ final class AphrontCursorPagerView extends AphrontView {
   public function render() {
     if (!$this->uri) {
       throw new Exception(
-        "You must call setURI() before you can call render().");
+        pht("You must call setURI() before you can call render()."));
     }
 
     $links = array();
@@ -95,7 +95,7 @@ final class AphrontCursorPagerView extends AphrontView {
             ->alter('before', null)
             ->alter('after', null),
         ),
-        "\xC2\xAB First");
+        "\xC2\xAB ". pht("First"));
     }
 
     if ($this->prevPageID) {
@@ -106,7 +106,7 @@ final class AphrontCursorPagerView extends AphrontView {
             ->alter('after', null)
             ->alter('before', $this->prevPageID),
         ),
-        "\xE2\x80\xB9 Prev");
+        "\xE2\x80\xB9 " . pht("Prev"));
     }
 
     if ($this->nextPageID) {
diff --git a/src/view/control/AphrontPagerView.php b/src/view/control/AphrontPagerView.php
index fe9340c0ae..352fe7a293 100644
--- a/src/view/control/AphrontPagerView.php
+++ b/src/view/control/AphrontPagerView.php
@@ -99,7 +99,7 @@ final class AphrontPagerView extends AphrontView {
   public function render() {
     if (!$this->uri) {
       throw new Exception(
-        "You must call setURI() before you can call render().");
+        pht("You must call setURI() before you can call render()."));
     }
 
     require_celerity_resource('aphront-pager-view-css');
@@ -140,11 +140,11 @@ final class AphrontPagerView extends AphrontView {
     $next_index = null;
 
     if ($min > 0) {
-      $links[] = array(0, 'First', null);
+      $links[] = array(0, pht('First'), null);
     }
 
     if ($page > 0) {
-      $links[] = array($page - 1, 'Prev', null);
+      $links[] = array($page - 1, pht('Prev'), null);
       $prev_index = $page - 1;
     }
 
@@ -153,12 +153,12 @@ final class AphrontPagerView extends AphrontView {
     }
 
     if ($page < $last && $last > 0) {
-      $links[] = array($page + 1, 'Next', null);
+      $links[] = array($page + 1, pht('Next'), null);
       $next_index = $page + 1;
     }
 
     if ($max < ($last - 1)) {
-      $links[] = array($last, 'Last', null);
+      $links[] = array($last, pht('Last'), null);
     }
 
     $base_uri = $this->uri;
diff --git a/src/view/control/AphrontTableView.php b/src/view/control/AphrontTableView.php
index db3b12eb95..ede387b65a 100644
--- a/src/view/control/AphrontTableView.php
+++ b/src/view/control/AphrontTableView.php
@@ -275,7 +275,7 @@ final class AphrontTableView extends AphrontView {
       $table[] = hsprintf(
         '<tr class="no-data"><td colspan="%s">%s</td></tr>',
         $colspan,
-        coalesce($this->noDataString, 'No data available.'));
+        coalesce($this->noDataString, pht('No data available.')));
     }
 
     $table_class = 'aphront-table-view';
diff --git a/src/view/form/AphrontFormView.php b/src/view/form/AphrontFormView.php
index 5d5af2a430..95e3bd2b74 100644
--- a/src/view/form/AphrontFormView.php
+++ b/src/view/form/AphrontFormView.php
@@ -71,7 +71,7 @@ final class AphrontFormView extends AphrontView {
       ->appendChild($this->renderChildren());
 
     if (!$this->user) {
-      throw new Exception('You must pass the user to AphrontFormView.');
+      throw new Exception(pht('You must pass the user to AphrontFormView.'));
     }
 
     $sigils = $this->sigils;
diff --git a/src/view/form/control/AphrontFormControl.php b/src/view/form/control/AphrontFormControl.php
index 0e21457e29..864aabea2b 100644
--- a/src/view/form/control/AphrontFormControl.php
+++ b/src/view/form/control/AphrontFormControl.php
@@ -128,7 +128,7 @@ abstract class AphrontFormControl extends AphrontView {
         $error = phutil_tag(
           'div',
           array('class' => 'aphront-form-error aphront-form-required'),
-          'Required');
+          pht('Required'));
       } else {
         $error = phutil_tag(
           'div',
diff --git a/src/view/form/control/AphrontFormDateControl.php b/src/view/form/control/AphrontFormDateControl.php
index 61c470bccf..286b8eb24f 100644
--- a/src/view/form/control/AphrontFormDateControl.php
+++ b/src/view/form/control/AphrontFormDateControl.php
@@ -23,7 +23,7 @@ final class AphrontFormDateControl extends AphrontFormControl {
     $user = $this->user;
     if (!$this->user) {
       throw new Exception(
-        "Call setUser() before readValueFromRequest()!");
+        pht("Call setUser() before readValueFromRequest()!"));
     }
 
     $user_zone = $user->getTimezoneIdentifier();
@@ -184,18 +184,18 @@ final class AphrontFormDateControl extends AphrontFormControl {
     $days = array_fuse($days);
 
     $months = array(
-      1 => 'Jan',
-      2 => 'Feb',
-      3 => 'Mar',
-      4 => 'Apr',
-      5 => 'May',
-      6 => 'Jun',
-      7 => 'Jul',
-      8 => 'Aug',
-      9 => 'Sep',
-      10 => 'Oct',
-      11 => 'Nov',
-      12 => 'Dec',
+      1 => pht('Jan'),
+      2 => pht('Feb'),
+      3 => pht('Mar'),
+      4 => pht('Apr'),
+      5 => pht('May'),
+      6 => pht('Jun'),
+      7 => pht('Jul'),
+      8 => pht('Aug'),
+      9 => pht('Sep'),
+      10 => pht('Oct'),
+      11 => pht('Nov'),
+      12 => pht('Dec'),
     );
 
     $years = range($this->getMinYear(), $this->getMaxYear());
diff --git a/src/view/form/control/AphrontFormImageControl.php b/src/view/form/control/AphrontFormImageControl.php
index 8e84d6fefc..28c6620037 100644
--- a/src/view/form/control/AphrontFormImageControl.php
+++ b/src/view/form/control/AphrontFormImageControl.php
@@ -30,7 +30,7 @@ final class AphrontFormImageControl extends AphrontFormControl {
         array(
           'for' => $id,
         ),
-        'Use Default Image instead'));
+        pht('Use Default Image instead')));
   }
 
 }
diff --git a/src/view/form/control/AphrontFormPolicyControl.php b/src/view/form/control/AphrontFormPolicyControl.php
index fc59cba1c1..3db5be8d18 100644
--- a/src/view/form/control/AphrontFormPolicyControl.php
+++ b/src/view/form/control/AphrontFormPolicyControl.php
@@ -21,12 +21,12 @@ final class AphrontFormPolicyControl extends AphrontFormControl {
     $this->capability = $capability;
 
     $labels = array(
-      PhabricatorPolicyCapability::CAN_VIEW => 'Visible To',
-      PhabricatorPolicyCapability::CAN_EDIT => 'Editable By',
-      PhabricatorPolicyCapability::CAN_JOIN => 'Joinable By',
+      PhabricatorPolicyCapability::CAN_VIEW => pht('Visible To'),
+      PhabricatorPolicyCapability::CAN_EDIT => pht('Editable By'),
+      PhabricatorPolicyCapability::CAN_JOIN => pht('Joinable By'),
     );
 
-    $this->setLabel(idx($labels, $this->capability, 'Unknown Policy'));
+    $this->setLabel(idx($labels, $this->capability, pht('Unknown Policy')));
 
     return $this;
   }
@@ -52,10 +52,10 @@ final class AphrontFormPolicyControl extends AphrontFormControl {
 
   protected function renderInput() {
     if (!$this->object) {
-      throw new Exception("Call setPolicyObject() before rendering!");
+      throw new Exception(pht("Call setPolicyObject() before rendering!"));
     }
     if (!$this->capability) {
-      throw new Exception("Call setCapability() before rendering!");
+      throw new Exception(pht("Call setCapability() before rendering!"));
     }
 
     $policy = $this->object->getPolicy($this->capability);
diff --git a/src/view/form/control/AphrontFormSubmitControl.php b/src/view/form/control/AphrontFormSubmitControl.php
index 17ccbefcab..3cb1f7fea6 100644
--- a/src/view/form/control/AphrontFormSubmitControl.php
+++ b/src/view/form/control/AphrontFormSubmitControl.php
@@ -4,7 +4,11 @@ final class AphrontFormSubmitControl extends AphrontFormControl {
 
   protected $cancelButton;
 
-  public function addCancelButton($href, $label = 'Cancel') {
+  public function addCancelButton($href, $label = null) {
+    if (!$label) {
+      $label = pht('Cancel');
+    }
+
     $this->cancelButton = phutil_tag(
       'a',
       array(
diff --git a/src/view/form/control/AphrontFormTokenizerControl.php b/src/view/form/control/AphrontFormTokenizerControl.php
index 3d82c2881b..35ef006475 100644
--- a/src/view/form/control/AphrontFormTokenizerControl.php
+++ b/src/view/form/control/AphrontFormTokenizerControl.php
@@ -81,17 +81,17 @@ final class AphrontFormTokenizerControl extends AphrontFormControl {
     $request = $matches[1];
 
     $map = array(
-      'users'           => 'Type a user name...',
-      'usersorprojects' => 'Type a user or project name...',
-      'searchowner'     => 'Type a user name...',
-      'accounts'        => 'Type a user name...',
-      'mailable'        => 'Type a user or mailing list...',
-      'allmailable'     => 'Type a user or mailing list...',
-      'searchproject'   => 'Type a project name...',
-      'projects'        => 'Type a project name...',
-      'repositories'    => 'Type a repository name...',
-      'packages'        => 'Type a package name...',
-      'arcanistproject' => 'Type an arc project name...',
+      'users'           => pht('Type a user name...'),
+      'usersorprojects' => pht('Type a user or project name...'),
+      'searchowner'     => pht('Type a user name...'),
+      'accounts'        => pht('Type a user name...'),
+      'mailable'        => pht('Type a user or mailing list...'),
+      'allmailable'     => pht('Type a user or mailing list...'),
+      'searchproject'   => pht('Type a project name...'),
+      'projects'        => pht('Type a project name...'),
+      'repositories'    => pht('Type a repository name...'),
+      'packages'        => pht('Type a package name...'),
+      'arcanistproject' => pht('Type an arc project name...'),
     );
 
     return idx($map, $request);
diff --git a/src/view/layout/AphrontSideNavFilterView.php b/src/view/layout/AphrontSideNavFilterView.php
index e4b2b7c9b9..2a38942edf 100644
--- a/src/view/layout/AphrontSideNavFilterView.php
+++ b/src/view/layout/AphrontSideNavFilterView.php
@@ -165,10 +165,10 @@ final class AphrontSideNavFilterView extends AphrontView {
   public function render() {
     if ($this->menu->getItems()) {
       if (!$this->baseURI) {
-        throw new Exception("Call setBaseURI() before render()!");
+        throw new Exception(pht("Call setBaseURI() before render()!"));
       }
       if ($this->selectedFilter === false) {
-        throw new Exception("Call selectFilter() before render()!");
+        throw new Exception(pht("Call selectFilter() before render()!"));
       }
     }
 
diff --git a/src/view/layout/PhabricatorActionListView.php b/src/view/layout/PhabricatorActionListView.php
index 3240a821ed..37c3252df9 100644
--- a/src/view/layout/PhabricatorActionListView.php
+++ b/src/view/layout/PhabricatorActionListView.php
@@ -17,7 +17,7 @@ final class PhabricatorActionListView extends AphrontView {
 
   public function render() {
     if (!$this->user) {
-      throw new Exception("Call setUser() before render()!");
+      throw new Exception(pht("Call setUser() before render()!"));
     }
 
     $event = new PhabricatorEvent(
diff --git a/src/view/layout/PhabricatorMenuView.php b/src/view/layout/PhabricatorMenuView.php
index c350d00351..bd4c471fe7 100644
--- a/src/view/layout/PhabricatorMenuView.php
+++ b/src/view/layout/PhabricatorMenuView.php
@@ -59,7 +59,8 @@ final class PhabricatorMenuView extends AphrontTagView {
     }
 
     if (!$this->getItem($key)) {
-      throw new Exception("No such key '{$key}' to add menu item after!");
+      throw new Exception(pht("No such key '%s' to add menu item after!",
+        $key));
     }
 
     $result = array();
@@ -99,7 +100,7 @@ final class PhabricatorMenuView extends AphrontTagView {
 
     $other = $this->getItem($key);
     if ($other->getType() != PhabricatorMenuItemView::TYPE_LABEL) {
-      throw new Exception("Menu item '{$key}' is not a label!");
+      throw new Exception(pht("Menu item '%s' is not a label!", $key));
     }
 
     $seen = false;
@@ -122,7 +123,7 @@ final class PhabricatorMenuView extends AphrontTagView {
 
   private function requireKey($key) {
     if (!$this->getItem($key)) {
-      throw new Exception("No menu item with key '{$key}' exists!");
+      throw new Exception(pht("No menu item with key '%s' exists!", $key));
     }
   }
 
@@ -153,7 +154,7 @@ final class PhabricatorMenuView extends AphrontTagView {
       if ($key !== null) {
         if (isset($key_map[$key])) {
           throw new Exception(
-            "Menu contains duplicate items with key '{$key}'!");
+            pht("Menu contains duplicate items with key '%s'!", $key));
         }
         $key_map[$key] = $item;
       }
diff --git a/src/view/layout/PhabricatorObjectItemView.php b/src/view/layout/PhabricatorObjectItemView.php
index 2d52803738..e58f14b68c 100644
--- a/src/view/layout/PhabricatorObjectItemView.php
+++ b/src/view/layout/PhabricatorObjectItemView.php
@@ -169,7 +169,7 @@ final class PhabricatorObjectItemView extends AphrontView {
       case null:
         break;
       default:
-        throw new Exception("Invalid effect!");
+        throw new Exception(pht("Invalid effect!"));
     }
 
     $content = phutil_tag(
diff --git a/src/view/layout/PhabricatorPropertyListView.php b/src/view/layout/PhabricatorPropertyListView.php
index 21018330f4..34c7cbea08 100644
--- a/src/view/layout/PhabricatorPropertyListView.php
+++ b/src/view/layout/PhabricatorPropertyListView.php
@@ -103,7 +103,7 @@ final class PhabricatorPropertyListView extends AphrontView {
           $items[] = $this->renderTextPart($part);
           break;
         default:
-          throw new Exception("Unknown part type '{$type}'!");
+          throw new Exception(pht("Unknown part type '%s'!", $type));
       }
     }
 
diff --git a/src/view/layout/PhabricatorTagView.php b/src/view/layout/PhabricatorTagView.php
index c28ba9cecd..0beec16a21 100644
--- a/src/view/layout/PhabricatorTagView.php
+++ b/src/view/layout/PhabricatorTagView.php
@@ -79,7 +79,7 @@ final class PhabricatorTagView extends AphrontView {
 
   public function render() {
     if (!$this->type) {
-      throw new Exception("You must call setType() before render()!");
+      throw new Exception(pht("You must call setType() before render()!"));
     }
 
     require_celerity_resource('phabricator-tag-view-css');
diff --git a/src/view/layout/PhabricatorTransactionView.php b/src/view/layout/PhabricatorTransactionView.php
index 6233c570f1..a4906d6d54 100644
--- a/src/view/layout/PhabricatorTransactionView.php
+++ b/src/view/layout/PhabricatorTransactionView.php
@@ -49,7 +49,7 @@ final class PhabricatorTransactionView extends AphrontView {
 
   public function render() {
     if (!$this->user) {
-      throw new Exception("Call setUser() before render()!");
+      throw new Exception(pht("Call setUser() before render()!"));
     }
 
     require_celerity_resource('phabricator-transaction-view-css');
diff --git a/src/view/page/PhabricatorStandardPageView.php b/src/view/page/PhabricatorStandardPageView.php
index 08b97981f8..1df3707a10 100644
--- a/src/view/page/PhabricatorStandardPageView.php
+++ b/src/view/page/PhabricatorStandardPageView.php
@@ -95,7 +95,8 @@ final class PhabricatorStandardPageView extends PhabricatorBarePageView {
 
     if (!$this->getRequest()) {
       throw new Exception(
-        "You must set the Request to render a PhabricatorStandardPageView.");
+        pht(
+          "You must set the Request to render a PhabricatorStandardPageView."));
     }
 
     $console = $this->getConsole();
diff --git a/src/view/viewutils.php b/src/view/viewutils.php
index ca2be6de9d..2616d08270 100644
--- a/src/view/viewutils.php
+++ b/src/view/viewutils.php
@@ -95,8 +95,8 @@ function phabricator_format_local_time($epoch, $user, $format) {
     // NOTE: DateTime throws an empty exception if the format is invalid,
     // just replace it with a useful one.
     throw new Exception(
-      "Construction of a DateTime() with epoch '{$epoch}' ".
-      "raised an exception.");
+      pht("Construction of a DateTime() with epoch '%s' ".
+      "raised an exception.", $epoch));
   }
 
   $date->setTimeZone($zone);