The American lives even more for his goals, for the future, than the European. Life for him is always becoming, never being.

A life directed chiefly toward the fulfillment of personal desires will sooner or later always lead to bitter disappointment.

A person starts to live when he can live outside himself.

I want to know what God thinks. The rest are details.

The stakes are immense, the task colossal, the time is short. But we may hope - we must hope - that man's own creation, man's own genius, will not destroy him.

As for the search for truth, I know from my own painful searching, with its many blind alleys, how hard it is to take a reliable step, be it ever so small, towards the understanding of that which is truly significant.

Problems cannot be solved by thinking within the framework in which the problems were created.