diff --git a/journal/2021-11-12.md b/journal/2021-11-12.md
index 14db2f4e0..ceddd4927 100644
--- a/journal/2021-11-12.md
+++ b/journal/2021-11-12.md
@@ -1,3 +1,5 @@
 # 2021-11-12
 
-- [[project euler]]
\ No newline at end of file
+- [[project euler]]
+- [[buddhism is true]]
+  - [[why buddhism is true]]
\ No newline at end of file
diff --git a/project euler.md b/project euler.md
index e7c58b921..386f14e26 100644
--- a/project euler.md	
+++ b/project euler.md	
@@ -4,4 +4,5 @@
   - [[programming]] [[math]]
   - [[go]] https://projecteuler.net/
     - [[1]] https://projecteuler.net/problem=1
+  - https://twitter.com/flancian/status/1459074030653345792
 
diff --git a/why buddhism is true.md b/why buddhism is true.md
new file mode 100644
index 000000000..c759cd864
--- /dev/null
+++ b/why buddhism is true.md	
@@ -0,0 +1,5 @@
+# why buddhism is true
+
+- a [[book]].
+  - by [[robert wright]]
+