Physics is not the most important thing. Love is.

We are lucky to live in an age in which we are still making discoveries.

If we will only allow that, as we progress, we remain unsure, we will leave opportunities for alternatives.

What is necessary for 'the very existence of science,' and what the characteristics of nature are, are not to be determined by pompous preconditions, they are determined always by the material with which we work, by nature herself. We look, and we see what we find, and we cannot say ahead of time successfully what it is going to look like. ... It is necessary for the very existence of science that minds exist which do not allow that nature must satisfy some preconceived conditions.

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.

If an apple was magnified to the size of the Earth, then the atoms in the apple would be approximately the size of the original apple.

Some things that satisfy the rules of algebra can be interesting to mathematicians even though they don't always represent a real situation.