When we see men of worth, we should think of equaling them; when we see men of a contrary character, we should turn inwards and examine ourselves.

Those who are free of resentful thoughts surely find peace.

If you spend too much time thinking about a thing, you'll never get it done.

Much of the evil in the world is due to the fact that man in general is hopelessly unconscious.

If you want to be happy, set a goal that commands your thoughts, liberates your energy and inspires your hopes.

Men should strive to think much and know little.

It doesn't matter how smart you are unless you stop and think.

I am quite sure now that often, very often, in matters concerning religion and politics a man's reasoning powers are not above the monkey's.

The free flow of conflicting ideas and feelings is critical for creative thinking, for discovering new solutions no one individual would have come to on his own.