Talbot Mundy, The King in Check — Chapter 8 (1922)
“ Virtue existed only as a weakness to be exploited. The question that always exercised him was, wherein does the other fellow's weakness lie? It's a form of madness. Where a sane man looks for strength and honesty that he can yoke up with, a Yussuf Dakmar spies out human failings; and whereas most of us in our day have mistaken pyrites for fine gold, which did not hurt more than was good for us, he ends by mistaking gold for dross.You can persuade such a man without the slightest difficulty that you are a fool and a crook. ”
