Utopias have their value -- nothing so wonderfully expands the imaginative horizons of human potentialities -- but as guides to conduct they can prove literally fatal.

Freedom for the wolves has often meant death to the sheep.

One must look at what impiety hates, what puts it in a rage, what it attacks always, everywhere, and with fury - that will be the truth.

True knowledge is knowledge of why things are as they are, and not merely what they are.

Injustice, poverty, slavery, ignorance - these may be cured by reform or revolution. But men do not live only by fighting evils. They live by positive goals, individual and collective, a vast variety of them, seldom predictable, at times incompatible.

One belief, more than any other, is responsible for the slaughter of individuals on the alter of the great historical ideas - justice or progress or happiness of future generations... or emancipation of a nation or race or class... this is the belief that somewhere... there is a final solution.

Life may be seen through many windows, none of them necessarily clear or opaque, less or more distorting than any of the others.