The greatness of a nation and its moral progress can be judged by the way its animals are treated.
If you pick up a starving dog and make him prosperous he will not bite you. This is the principal difference between a dog and man.
Earth provides enough to satisfy every man's needs, but not every man's greed.
Man is the only creature who refuses to be what he is.
I am enough of an artist to draw freely upon my imagination. Imagination is more important than knowledge. Knowledge is limited. Imagination encircles the world.
Logic will get you from A to Z; imagination will get you everywhere.
I am not young enough to know everything.
If one cannot enjoy reading a book over and over again, there is no use in reading it at all.
It is what you read when you don't have to that determines what you will be when you can't help it.
What difference does it make to the dead, the orphans and the homeless, whether the mad destruction is wrought under the name of totalitarianism or in the holy name of liberty or democracy?
The Roots of Violence: Wealth without work, Pleasure without conscience, Knowledge without character,
Never memorize something that you can look up.
If you tell the truth, you don't have to remember anything.
Good friends, good books, and a sleepy conscience: this is the ideal life.
Be careful about reading health books. You may die of a misprint.
An eye for an eye will only make the whole world blind.
First they ignore you, then they ridicule you, then they fight you, and then you win.
If animals could speak, the dog would be a blundering outspoken fellow; but the cat would have the rare grace of never saying a word too much.
I like your Christ, I do not like your Christians. Your Christians are so unlike your Christ.
The Bible has noble poetry in it... and some good morals and a wealth of obscenity, and upwards of a thousand lies.
If I were not a physicist, I would probably be a musician. I often think in music. I live my daydreams in music. I see my life in terms of music.
Without music, life would be a mistake.
I don't want to go to heaven. None of my friends are there.
Heaven goes by favor. If it went by merit, you would stay out and your dog would go in.
If I had no sense of humor, I would long ago have committed suicide.
Should I kill myself, or have a cup of coffee?
You must have chaos within you to give birth to a dancing star.
We have art in order not to die of the truth.
A thing is not necessarily true because a man dies for it.
Each night, when I go to sleep, I die. And the next morning, when I wake up, I am reborn.
Always forgive your enemies; nothing annoys them so much.
The weak can never forgive. Forgiveness is the attribute of the strong.
Whenever you are confronted with an opponent, conquer him with love.
The heart was made to be broken.
Prayer is not asking. It is a longing of the soul. It is daily admission of one's weakness. It is better in prayer to have a heart without words than words without a heart.