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.

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.

All forms of tampering with human beings, getting at them, shaping them against their will to your own pattern, all thought control and conditioning is, therefore, a denial of that in men which makes them men and their values ultimate.

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

The first people totalitarians destroy or silence are men of ideas and free minds.

Liberty and equality, spontaneity and security, happiness and knowledge, mercy and justice - all these are ultimate human values, sought for themselves alone; yet when they are incompatible, they cannot all be attained, choices must be made, sometimes tragic losses accepted in the pursuit of some preferred ultimate end.