While I am a convinced pacifist there are circumstances in which I believe the use of force is appropriate - namely, in the face of an enemy unconditionally bent on destroying me and my people.

What I see in Nature is a grand design that we can understand only imperfectly, one with which a responsible person must look at with humility.

The only rational way of educating is to be an example. If one can't help it, a warning example.

There will come a point in everyone's life , however, where only intuition can make the leap ahead, without ever knowing precisely how. One can never know why but one must accept intuition as a fact.

Only two things are infinite, the universe and human stupidity, and I'm not sure about the former.

The Universe is difficult to comprehend because it is obvious.

I have lived to prove Thoreau's contention that a man is rich in proportion to the number of things which he can afford to let alone.