In spite of the great advances which have been made in our knowledge, some fundamental gaps remain. Matter, life and mind still remain utter disparate phenomena, yet the concepts of all three arise in experience; and in the human all three meet and intermingle.

History writes the word 'Reconciliation' over all her quarrels.

When I look at history, I am a pessimist...but when I look at prehistory, I am an optimist.

Instead of the animistic, mechanistic, or the mathematical universe, we see the genetic, organic, holistic universe.

If there was to be equal manhood suffrage the whites would be swamped all over South Africa by the blacks and the whole position for which whites have striven for 200 years or more would be given up.

The intimate rapport with nature is one of the most precious things in life. Nature is indeed very close to us; sometimes closer than hands and feet, of which in truth she is but the extension. The emotional appeal of nature is tremendous, sometimes almost more than one can bear.

When in doubt, do the courageous thing.