diff --git a/epistemological letters.md b/epistemological letters.md
new file mode 100644
index 000000000..4ebe927a2
--- /dev/null
+++ b/epistemological letters.md	
@@ -0,0 +1,6 @@
+# epistemological letters
+
+- a [[journal]]
+  - [[underground]]
+  - [[wp]] https://en.wikipedia.org/wiki/Epistemological_Letters
+
diff --git a/journal/2021-09-02.md b/journal/2021-09-02.md
index f8472498f..896c5b023 100644
--- a/journal/2021-09-02.md
+++ b/journal/2021-09-02.md
@@ -1,4 +1,6 @@
 # 2021-09-02
 
 - [[susan rigetti]]
-  - [[so you want to learn physics]]
\ No newline at end of file
+  - [[so you want to learn physics]]
+- [[epistemological letters]]
+  - [[underground]]
\ No newline at end of file