“The height of cleverness is to be able to conceal it.”

“Passion often makes a madman of the cleverest man, and renders the greatest fools clever.”

“Imagination could never invent the number of different contradictions that exist innately in each person's heart.”

“It is easier to be wise for others than for ourselves.”

“No persons are more frequently wrong, than those who will not admit they are wrong.”

“One cannot answer for his courage when he has never been in danger.”

“When we are unable to find tranquility within ourselves, it is useless to seek it elsewhere.”