In one's youth every person and every event appear to be unique. With age one becomes much more aware that similar events recur. Later on, one is less often delighted or surprised, but also less disappointed than in earlier years.

You can't solve problems with the same thinking that caused them.

The unleashed power of the atom has changed everything save our modes of thinking and we thus drift toward unparalleled catastrophe.

Games are the most elevated form of investigation.

The value of a college education is not the learning of many facts but the training of the mind to think

Everyday is an oportunity to make a new happy ending.

The most fundamental question we can ever ask ourselves is whether or not the universe we live in is friendly or hostile.