Absolutely no religious rites of any kind, relating to any religious faith, should be associated with my funeral.

Never attribute to malevolence what is merely due to incompetence

I'm quite fond of the writer who told a beginning author, "If you've got a message, use Western Union."

As our own species is in the process of proving, one cannot have superior science and inferior morals. The combination is unstable and self-destroying.

It is vital to remember that information - in the sense of raw data - is not knowledge, that knowledge is not wisdom, and that wisdom is not foresight. But information is the first essential step to all of these.

As three laws were good enough for Newton, I have modestly decided to stop there.

After their encounter on the approach to Jupiter, there would aways be a secret bond between them---not of love, but of tenderness, which is often more enduring.