No paradox, no progress.

Truth and clarity are complementary.

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.

Accuracy and clarity of statement are mutually exclusive.

When searching for harmony in life one must never forget that in the drama of existence we are ourselves both actors and spectators.

In our description of nature the purpose is not to disclose the real essence of the phenomena but only to track down, so far as it is possible, relations between the manifold aspects of our experience.

Truth is something that we can attempt to doubt, and then perhaps, after much exertion, discover that part of the doubt is not justified.