From 7d1a777f8bb1bd1696eaeda3f923188509cca595 Mon Sep 17 00:00:00 2001
From: Morgan <wattiez.morgan@gmail.com>
Date: Sun, 29 Oct 2017 12:43:01 +0100
Subject: [PATCH] the original DRY principle

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 PRINCIPLES.md | 1 +
 1 file changed, 1 insertion(+)

diff --git a/PRINCIPLES.md b/PRINCIPLES.md
index a82f382..49af561 100644
--- a/PRINCIPLES.md
+++ b/PRINCIPLES.md
@@ -55,6 +55,7 @@
 * Mark Twain : If you tell the truth, you don't have to remember anything. 
 * One day, you will be at the place you always wanted to be. Don't stop believing.
 * There is no elevator to success. You have to take the stairs.
+* [Andy Hunt & Dave Thomas](https://twitter.com/nicolopigna/status/921280768697143296) - the original DRY principle : "Every piece of knowledge must have a single, unambiguous, authoritative representation, within a system"
 
 # from my twitter
 * [MorganGeek](https://twitter.com/MorganGeek/statuses/420907517934178304) - Problem solving / Productivity : Good programmers write code after they found the solution. Un bon programmeur ne commence à coder qu'après avoir trouvé une solution.