It is unwise to be too sure of one's own wisdom. It is healthy to be reminded that the strongest might weaken and the wisest might err.

Not every truth is the better for showing its face undisguised and often silence is the wisest thing for a man to heed.

Time is the wisest counselor of all.

And to say that society ought to be governed by the opinion of the wisest and best though true is useless. Whose opinion is to decide who are the wisest and best?

Even the weakest disputant is made so conceited by what he calls religion as to think himself wiser than the wisest who think differently from him.

If one were to bring ten of the wisest men in the world together and ask them what was the most stupid thing in existence they would not be able to discover anything so stupid as astrology.

A little nonsense now and then is relished by the wisest men.

When I look upon seamen men of science and philosophers man is the wisest of all beings when I look upon priests and prophets nothing is as contemptible as man.

Let me embrace thee sour adversity for wise men say it is the wisest course.

Regarding life the wisest men of all ages have judged alike: it is worthless.