The need is not really for more brains, the need is now for a gentler, a more tolerant people than those who won for us against the ice, the tiger and the bear. The hand that hefted the ax, out of some old blind allegiance to the past fondles the machine gun as lovingly. It is a habit man will have to break to survive, but the roots go very deep.

Men love liberty because it protects them from control and humiliation by others, thus affording them the possibility of dignity; they loathe liberty because it throws them back on their own abilities and resources, thus confronting them with the possibility of insignificance.

I greatly fear some of America's greatest and most dangerous enemies are such as think themselves her best friends.

Genuine equality between the sexes can only be realized in the process of the socialist transformation of society as a whole.

Two polar groups: at one pole we have the literary intellectuals, at the other scientists, and as the most representative, the physical scientists. Between the two a gulf of mutual incomprehension.

The perspective of eternity is not a perspective from a certain place beyond the world, nor the point of view of a transcendent being; rather it is a certain form of thought and feeling that rational persons can adopt within the world ... Purity of heart, if one could attain it, would be to see clearly and to act with grace and self-command from this point of view.