The justification for a university is that it preserves the connection between knowledge and the zest of life, by uniting the young and the old in the imaginative consideration of learning.

I regret that it has been necessary for me in this lecture to administer a large dose of four-dimensional geometry. I do not apologize, because I am really not responsible for the fact that nature in its most fundamental aspect is four-dimensional. Things are what they are.

The learned tradition is not concerned with truth, but with the learned adjustment of learned statements of antecedent learned people.

The difference between ancients and moderns is that the ancients asked what have we experienced, and moderns asked what can we experience.

It is impossible to meditate on time and the mystery of nature without an overwhelming emotion at the limitations of human intelligence.

Aristotle discovered all the half-truths which were necessary to the creation of science.

There is only one subject matter for education, and that is Life in all its manifestations