To sum up: I am the man who when the concern pressed him and his way was straitened and he could find no other device by which to teach a demonstrable truth other than by giving satisfaction to a single virtuous man while displeasing ten thousand ignoramuses - I am he who prefers to address that single man by himself, and I do not heed the blame of those many creatures.

For every force charged by God, may He be exalted, with some business is an angel put in charge.

Man's obsession to add to his wealth and honor is the chief source of his misery.

He who does not understand that a dead lion is more alive than a living dog will remain a dog.

The same is the case with those opinions of man to which he has been accustomed from his youth; he likes them, defends them, and shuns the opposite views.

Let nothing which can be treated by diet be treated by other means.

Every man whose character traits all lie in the mean is called a wise man.