consistency of man

(thegreekkeysociety.blogspot.com)

"(...)
Gideon - the first record of war is from 2700 b.C... probably not the first war, but before that didn't exist writing.
Aaron - men are killing each other for almost 5000 years...
Gideon - its the only thing that they are consistently good at!"

in Criminal Minds (AXN)