"What is tolerance? It is the prerogative of humanity. We are all full of weakness and errors; let us mutually pardon our follies."

"The human brain is a complex organ with the wonderful power of enabling man to find reasons for continuing to believe whatever he wants to believe."

"The pen is mightier than the sword."

"The longer we dwell on our misfortunes, the greater is their power to harm us."

"He who thinks himself a philosopher, when he is only a fool, is in a very dangerous situation."