When a Caltech student asked the eminent cosmologist Michael Turner what his "bias" was in favoring one or another particle as a likely candidate to compromise dark matter in the universe, Feynmann snapped, "Why do you want to know his bias? Form your own bias!"

The present situation in physics is as if we know chess, but we don't know one or two rules.

This is not yet a scientific age.

Our responsibility is to do what we can, learn what we can, improve the solutions, and pass them on.

All theoretical chemistry is really physics; and all theoretical chemists know it.

From a long view of the history of mankind, seen from, say, ten thousand years from now, there can be little doubt that the most significant event of the 19th century will be judged as Maxwell's discovery of the laws of electrodynamics. The American Civil War will pale into provincial insignificance in comparison with this important scientific event of the same decade.

I think I can safely say that nobody understands Quantum Mechanics.