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.

If anybody says he can think about quantum physics without getting giddy, that only shows he has not understood the first thing about them.

Truth and clarity are complementary.

A person who wasn't outraged on first hearing about quantum theory didn't understand what had been said.

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.

An independant reality in the ordinary physical sense can neither be ascribed to the phenomenon nor to the agencies of observation.

Prediction is very difficult, especially if it's about the future.