"It is not easy to see how the more extreme forms of nationalism can long survive when men have seen the Earth in its true perspective as a single small globe against the stars."

"Sometimes I think we're alone in the universe, and sometimes I think we're not. In either case the idea is quite staggering."

"Any sufficiently advanced technology is indistinguishable from magic."

"The First Clarke Law states, “If an elderly but distinguished scientist says that something is possible he is almost certainly right, but if he says that it is impossible he is very probably wrong.”"

"The man who interprets Nature is always held in great honor."

"While a case can be made for intelligent design, I can't figure out why some Christians are so thrilled about that possibility. First of all, it doesn't prove there's a God. If anything, intelligent design lends support to some form of pantheism that defines God as immanent within nature."

"Scenery is fine - but human nature is finer."

"Let thoughts come and go like clouds across an undisturbed autumn sky. Let this simple maxim guide your daily deeds."