Out of the crooked timber of humanity, nothing completely straight was ever made

When a man speaks of the need for realism one may be sure that this is always the prelude to some bloody deed.

When one is engaged in a desperate defense of one's world and its values, nothing can be given away, any breach in the walls might be fatal, every point must be defended to the death.

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

Conformities are called for much more eagerly today than yesterday... skeptics, liberals, individuals with a taste for private life and their own inner standards of behavior, are objects of fear and derision and targets of persecution for either side... in the great ideological wars of our time.

No perfect solution is, not merely in practice, but in principle, possible in human affairs, and any determined attempt to produce it is likely to lead to suffering, disillusionment and failure.

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