A little knowledge is a dangerous thing. So is a lot.

I'd rather be an optimist and a fool than a pessimist and right.

We are in the position of a little child entering a huge library, whose walls are covered to the ceiling with books in many different languages. The child knows that someone must have written those books. It does not know who or how. It does not understand the the languages in which they are written. The child notes a definite plan in the arrangement of the books, a mysterious order, which it does not comprehend but only dimly suspects.

My sense of god is my sense of wonder about the universe.

Love is not the stupidest thing a man does, but it cannot be blamed on gravity.

The only thing we can be certain of in this life is that we can be certain of nothing.

Scientific research is based on the idea that everything that takes place is determined by laws of Nature, and therefore this holds for the action of people. For this reason, a research scientist will hardly be inclined to believe that events could be influenced by a prayer, i.e. by a wish addressed to a Supernatural Being.