A man's ruin lies in his tongue.

Lookingfor fish? Don't climb a tree.

Ittakes time to save time.

If youcan make a man laugh, you can make him think and make him like and believeyou.

Only hethat has traveled the road knows where the holesare deep.

Silenceis foolish if we are wise, but wise if we are foolish.

The exercise of power is determined by thousands ofinteractions between the world of the powerful and that of the powerless, allthe more so because these worlds are never divided by a sharp line: everyonehas a small part of himself in both.

Can we do good to the world? In an absolute sense, no; in a relative sense, yes.

Nature hasgiven men one tongue and two ears, that we may hear twice as much as wespeak.

Nobody everforgets where he buried the hatchet.

The World is but, a school of inquiry.

Teaching may contribute to certain kinds of learning under certain circumstances.