Creativity is so delicate a flower that praise tends to make it bloom, while discouragement often nips it in the bud.

A definition is the enclosing a wilderness of idea within a wall of words.

Cat-Ideas and Mouse-Ideas. We can never get rid of mouse-ideas completely, they keep turning up again and again, and nibble, nibble-no matter how often we drive them off. The best way to keep them down is to have a few good strong cat-ideas which will embrace them and ensure their not reappearing till they do so in another shape.

If a man knows not life which he hath seen, how shall he know death, which he hath not seen?

There is no such source of error as the pursuit of absolute truth.

Spare the rod and spoil the child.

People are always good company when they are doing what they really enjoy.