The mind, once stretched by a new idea, never returns to its original dimensions.

There is no doctrine of the Reason which will bear to be taught by the Understanding.

You can take better care of your secret than another can.

Whatever limits us we call fate.

For, though the origin of most of our words is forgotten, each word was at first a stroke of genius, and obtained currency, because for the moment it symbolized the world to the first speaker and to the hearer. The etymologist finds the deadest word to have been once a brilliant picture.

The charm of the best courages is that they are inventions, inspirations, flashes of genius.

A child is a curly, dimpled lunatic.