True knowledge comes with deep understanding of a topic and its inner workings.

Everyone knew it was impossible, until a fool who didn't know came along and did it.

Creativity is contagious. Pass it on.

I am convinced that some political and social activities and practices of the Catholic organizations are detrimental and even dangerous for the community as a whole, here and everywhere. I mention here only the fight against birth control at a time when overpopulation in various countries has become a serious threat to the health of people and a grave obstacle to any attempt to organize peace on this planet.

It has often been said, and certainly not without justification, that the man of science is a poor philosopher.

America is a large country and its people have so far not shown much interest in great international problems, among which the problem of disarmament occupies first place today. This must be changed, if only in America's own interest. The last war has shown that there are no longer any barriers between the continents and that the destinies of all countries are closely interwoven. The people of this country must realize that they have a great responsibility in the sphere of international politics. The part of passive spectator is unworthy of this country and is bound in the end to lead to disaster all round.

Joy in looking and comprehending is nature's most beautiful gift.