In order to know whether a human being is young or old, offer it food of different kinds at short intervals. If young, it will eat anything at any hour of the day or night.

Knowledge and timber shouldn't be much used till they are seasoned.

The very minute a thought is threatened with publicity it seems to shrink towards mediocrity.

Fame is the scentless sunflower, with gaudy crown of gold; But friendship is the rose, with sweets in every fold.

Our morality seems to be only a check on the ultimate domination of force, just as our politeness is a check on the impulse of every pig to put his feet in the trough.

Certitude is not the test of certainty.

Where we stand is not as important as the direction in which we are moving.