It is one of the strange facts of experience that when we try to think about the future, our thoughts jump backwards. It may well be that nature has some fundamental metaphysical law by which opening up what we call the future also opens up the past in equal degree.

For the first time in history it is now possible to take care of everybody at a higher standard of living than any have ever known. Only ten years ago the 'more with less' technology reached the point where this could be done. All humanity now has the option to become enduringly successful.

If man chooses oblivion, he can go right on leaving his fate to his political leaders. If he chooses Utopia, he must initiate an enormous education program - immediately, if not sooner.

Everything you've learned in school as "obvious" becomes less and less obvious as you begin to study the universe.

You can never learn less; you can only learn more.

If you change the environment, you change the people.

Relativity is inherently convergent, though convergent toward a plurality of centers of abstract truths.