Science cannot destroy the consciousness of freedom, without which there is no morality and no art, but it can refute it.

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

But to manipulate men, to propel them toward goals which you-the social reformers-see, but they may not, is to deny their human essence, to treat them as objects without wills of their own, and therefore to degrade them.

To understand is to perceive patterns.

Liberty for wolves is death to the lambs.

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

All central beliefs on human matters spring from a personal predicament.