Knowledge rests not upon truth alone, but upon error also.

The possession of knowledge does not kill the sense of wonder and mystery. There is always more mystery.

He who has so little knowledge of human natures as to seek happiness by changing anything but his own disposition will waste his life in fruitless efforts.

For beautiful eyes, look for the good in others; for beautiful lips, speak only words of kindness; and for poise, walk with the knowledge that you are never alone.

Opinion is the medium between knowledge and ignorance.

There is much pleasure to be gained from useless knowledge.

When I examine myself and my methods of thought, I come to the conclusion that the gift of fantasy has meant more to me than my talent for absorbing positive knowledge.

The opinion of 10,000 men is of no value if none of them know anything about the subject.

Be bold. If you're going to make an error, make a doozy, and don't be afraid to hit the ball.

The successful man will profit from his mistakes and try again in a different way.

The opposite is beneficial; from things that differ comes the fastest fairest attunement; all things are born through strife.

Creativity is often blocked to trying to be perfect. Creativity is allowing yourself to make mistakes.

Do not be embarrassed by your mistakes. Nothing can teach us better than our understanding of them. This is one of the best ways of self-education.

You will make all kinds of mistakes; but as long as you are generous and true, and also fierce, you cannot hurt the world or even seriously distress her.

There is nothing so absurd or ridiculous that has not at some time been said by some philosopher.

All men make mistakes, but a good man yields when he knows he knows his course is wrong and repairs the evil. The only crime is pride.

Falsehood has an infinity of combinations, but truth has only one mode of being.

But all my life through, the very insistence on truth has taught me to appreciate the beauty of compromise.

Without courage, we cannot practice any other virtue with consistency. We can't be kind, true, merciful, generous, or honest.

If you would be a real seeker after truth, it is necessary that at least once in your life you doubt, as far as possible, all things.

No man, for any considerable period, can wear one face to himself, and another to the multitude, without finally getting bewildered as to which may be true.

For truth is precious and divine—too rich a perl for carnal swine.

There will be, in the next generation or so, a pharmacological method of making people love their servitude, and producing dictatorship without tears, so to speak, producing a kind of painless concentration camp for entire societies, so that people will in fact have their liberties taken away from them, but will rather enjoy it, because they will be distracted from any desire to rebel by propaganda or brainwashing, or brainwashing enhanced by pharmacological methods. And this seems to be the final revolution.

There are very few human beings who receive the truth, complete and staggering, by instant illumination. Most of them acquire it fragment by fragment, on a small scale, by successive developments, cellularly, like a laborious mosaic.