Thinking and spoken discourse are the same thing, except that what we call thinking is, precisely, the inward dialogue carried on by the mind with itself without spoken sound.

Just as it would be madness to settle on medical treatment for the body of a person by taking an opinion poll of the neighbors, so it is irrational to prescribe for the body politic by polling the opinions of the people at large.

A man who is good for anything ought not to calculate the chance of living or dying; he ought only to consider whether in doing anything he is doing right or wrong - acting the part of a good man or of a bad.

Love is a madness produced by an unsatisfiable rational desire to understand the ultimate truth about the world.

You may be sure, dear Crito, that inaccurate language is not only in itself a mistake: it implants evil in men's souls.

The more the pleasures of the body fade away, the greater to me is the pleasure and charm of conversation.

Seek truth while you are young, for if you do not, it will later escape your grasp