diff --git a/controversy-in-philosophy.md b/controversy-in-philosophy.md
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+# Controversy in Philosophy
+
diff --git a/problem-of-universals.md b/problem-of-universals.md
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+# Problem of Universals
+
+- [[go]]  https://en.m.wikipedia.org/wiki/Problem_of_universals
+  - [[quote]] Should the properties an object has in common with other objects, such as color and shape, be considered to exist beyond those objects?
+  - Seems related to [[qualia]] and the [[hard problem of consciousness]].
+
+
+[//begin]: # "Autogenerated link references for markdown compatibility"
+[go]: go "Go"
+[quote]: quote "Quote"
+[qualia]: qualia "Qualia"
+[//end]: # "Autogenerated link references"
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diff --git a/theory-of-forms.md b/theory-of-forms.md
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+++ b/theory-of-forms.md
@@ -11,4 +11,6 @@
 [Plato]: plato "Plato"
 [Socrates]: socrates "Socrates"
 [knowledge]: knowledge "Knowledge"
+[controversy in philosophy]: controversy-in-philosophy "Controversy in Philosophy"
+[problem of universals]: problem-of-universals "Problem of Universals"
 [//end]: # "Autogenerated link references"
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