To the extent math refers to reality, we are not certain to the extent we are certain, math does not refer to reality.

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.

Do things sound better in your head before you say them, or do you even run them through there first?

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

What is the meaning of human life, or of organic life altogether? To answer this question at all implies a religion.

The emotional state that leads to achievements resembles that of a worshiper or the lover.

The restriction of knowledge to an elite group destroys the spirit of the society and leads to its intellectual impoverishment.