“Let a fool be made serviceable according to his folly.”

“Just as the good physician should go and offer his services where the sick are most numerous, so, said [ Diogenes], the man of wisdom should take up his abode where fools are thickest in order to convict them of their folly and reprove them.”

“There are three kinds of fools in this world, fools proper, educated fools and rich fools. The world persists because of the folly of these fools.”

“Love is the wisdom of the fool and the folly of the wise.”

“A fool’s brain digests philosophy into folly, science into superstition, and art into pedantry.”

“Fear that makes faith may break faith; and a fool Is but in folly stable.”

“Because no battle is ever won. They are not even fought. The field only reveals to man his own folly and despair, and victory is an illusion of philosophers and fools. Be different!”

“Let a fool hold his tongue and he will pass for a sage.”
Taciturnitas stulto homini pro sapientia est.

“True wisdom is less presuming than folly. The wise man doubteth often, and changeth his mind; the fool is obstinate, and doubteth not; he knoweth all things but his own ignorance.”

“The ultimate result of shielding men from the effects of folly, is to fill the world with fools.”