diff --git a/QUOTES.md b/QUOTES.md
index 81ca1af..b2ca483 100644
--- a/QUOTES.md
+++ b/QUOTES.md
@@ -8,3 +8,6 @@
 
 “If you think it’s expensive to hire a professional, wait until you hire an amateur.”
 —Red Adair
+
+“Programming is not a zero-sum game. Teaching something to a fellow programmer doesn’t take it away from you.”
+-John Carmack