I am convinced that of all the people on the two sides of the great curtain, the space pilots are the least likely to hate each other. Like the late Erich von Holst, I believe that the tremendous and otherwise not quite explicable public interest in space flight arises from the subconscious realization that it helps to preserve peace. May it continue to do so!

In nature we find not only that which is expedient, but also everything which is not so inexpedient as to endanger the existence of the species.

We do not take humor seriously enough.

It ought to be realized by all dog owners that obesity shortens a dog's life quite considerably, a life which is much too short anyhow.

Humor and knowledge are the two great hopes of our culture.

Historians will have to face the fact that natural selection determined the evolution of cultures in the same manner as it did that of species.

The fidelity of a dog is a precious gift.