belief

I believe I never knew what the word round meant until I saw Earth from space.

Finding bad reasons for what one believes for other bad reasons - that's philosophy.

Those who believe that they are exclusively in the right are generally those who achieve something.

Whoever ... proves his point and demonstrates the prime truth geometrically should be believed by all the world, for there we are captured.

A man's moral worth is not measured by what his religious beliefs are but rather by what emotional impulses he has received from Nature during his lifetime.

Possessions, outward success, publicity, luxury - to me these have always been contemptible. I believe that a simple and unassuming manner of life is best for every one, best both for the body and the mind.

I believe in Spinoza's God who reveals himself in the orderly harmony of all that exists, not in a God who concerns himself with fates and actions of human beings.

Now he has departed from this strange world a little ahead of me. That means nothing. People like us, who believe in physics,know that the distinction between past, present, and future is only a stubbornly persistent illusion.

I don't believe in mathematics.

I do not believe in the immortality of the individual, and I consider ethics to be an exclusively human concern without any superhuman authority behind it.