"It is a double pleasure to deceive the deceiver." — Jean de La Fontaine

It is twice the pleasure to deceive the deceiver.

Everyone has his faults which he continually repeats: neither fear nor shame can cure them.

Anyone entrusted with power will abuse it if not also animated with the love of truth and virtue, no matter whether he be a prince, or one of the people.

We must laugh before we are happy, for fear we die before we laugh at all.