The use of self control is like the use of brakes on train. It is useful when you find yourself in wrong direction but merely harmful when the direction is right

There is no greater reason for children to honour parents than for parents to honour children except, that while the children are young, the parents are stronger than children.

The time you enjoy wasting is not wasted time.

We need a science to save us from science.

Truth is a shining goddess, always veiled, always distant, never wholly approachable, but worthy of all the devotion of which the human spirit is capable.

The method of "postulating" what we want has many advantages; they are the same as the advantages of theft over honest toil.

Be isolated, be ignored, be attacked, be in doubt, be frightened, but do not be silenced.