We have this terrible struggle to try to explain things to people who have no reason to want to know.

We are very lucky to be living in an age in which we are still making discoveries. It is like the discovery of America-you only discover it once. The age in which we live is the age in which we are discovering the fundamental laws of nature, and that day will never come again. It is very exciting, it is marvelous, but this excitement will have to go.

Experiment is the sole judge of the validity of any idea.

Science is a way for us to not fool ourselves.

In its efforts to learn as much as possible about nature, modern physics has found that certain things can never be "known" with certainty. Much of our knowledge must always remain uncertain. The most we can know is in terms of probabilities.

A very great deal more truth can become known than can be proven.

Religion is a culture of faith; science is a culture of doubt.