Sometimes the child in one behaves a certain way and the rest of oneself follows behind, slowly shaking its head.

Physics is the belief that a simple and consistent description of nature is possible.

Rutherford is a man you can rely on; he comes regularly and enquires how things are going and talks about the smallest details - Rutherford is such an outstanding man and really interested in the work of all the people around him.

The very nature of the quantum theory ... forces us to regard the space-time coordination and the claim of causality, the union of which characterizes the classical theories, as complementary but exclusive features of the description, symbolizing the idealization of observation and description, respectively.

Your theory is crazy, but it's not crazy enough to be true.

Accuracy and clarity of statement are mutually exclusive.

The old saying of the two kinds of truth. To the one kind belongs statements so simple and clear that the opposite assertion obviously could not be defended. The other kind, the so-called 'deep truths', are statements in which the opposite also contains deep truth.