From The History of Henry Esmond Esquire, by William Makepeace Thackeray
MEN OF THE WORLD
"I think no persons more hypocritical, and have a more affected behavior to one another, than the young. They deceive themselves and each other with artifices that do not impose upon men of the world; and so we get to understand truth better, and grow simpler as we grow older."
From Chapter IX, I Prepare to Leave Castlewood