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

The truth always turns out to be simpler than you thought.

But see that the imagination of nature is far, far greater than the imagination of man.

The work I have done has, already, been adequately rewarded and recognized. Imagination reaches out repeatedly trying to achieve some higher level of understanding, until suddenly I find myself momentarily alone before one new corner of nature's pattern of beauty and true majesty revealed. That was my reward.

For those who want some proof that physicists are human, the proof is in the idiocy of all the different units which they use for measuring energy.

Teach principles not formulas.

Nature uses only the longest threads to weave her patterns, so that each small piece of her fabric reveals the organization of the entire tapestry.