diff --git a/_posts/2018-01-15-Letters-To-Lucilius.html b/_posts/2018-01-15-Letters-To-Lucilius.html
index 05d6c80..d384ae6 100644
--- a/_posts/2018-01-15-Letters-To-Lucilius.html
+++ b/_posts/2018-01-15-Letters-To-Lucilius.html
@@ -15,16 +15,33 @@ all of my responses.</p>
 
 <h2>Seneca's Moral Letters to Lucilius</h2>
 <ul>
-    <li><a href="letter-to-lucilius-1.html">
+    <li><a href="{{ site.baseurl }}
+            {% post_url 2018-01-15-letter-to-lucilius-1 %}">
             Letter 1: On Time</a></li>
-    <li><a href="letter-to-lucilius-2.html">
+    <li><a href="{{ site.baseurl }}
+            {% post_url 2018-01-15-letter-to-lucilius-2 %}">
             Letter 2: On discursiveness in reading</a></li>
-    <li><a href="letter-to-lucilius-3.html">
+    <li><a href="{{ site.baseurl }}
+            {% post_url 2018-01-28-letter-to-lucilius-3 %}">
             Letter 3: On True and False Friendship</a></li>
-    <li><a href="letter-to-lucilius-4.html">
+    <li><a href="{{ site.baseurl }}
+            {% post_url 2018-01-28-letter-to-lucilius-4 %}">
             Letter 4: On the Terrors of Death</a></li>
-    <li><a href="letter-to-lucilius-11.md">
+    <li><a href="{{ site.baseurl}}
+            {% post_url 2018-02-11-letter-to-lucilius-5 %}">
+            Letter 5: On the Philosopher's Mean</a></li>
+    <li><a href="{{ site.baseurl}}
+            {% post_url 2018-02-11-letter-to-lucilius-6 %}">
+            Letter 6: On Sharing Knowledge</a></li>
+    <li><a href="{{ site.baseurl}}
+            {% post_url 2018-01-28-letter-to-lucilius-11 %}">
             Letter 11: On the Blush of Modesty</a></li>
+    <li><a href="{{ site.baseurl}}
+            {% post_url 2018-02-11-letter-to-lucilius-12 %}">
+            Letter 12: On Old Age</a></li>
+    <li><a href="{{ site.baseurl}}
+            {% post_url 2018-02-11-letter-to-lucilius-13 %}">
+            letter 13: On Groundless Fears</a></li>
 </ul>
 
 <h3>Source</h3>