If horses knew their strength we should not ride anymore.

One frequently only finds out how really beautiful a really beautiful woman is after considerable acquaintance with her; and the rule applies to Niagara Falls, to majestic mountains, and to mosques-especially to mosques.

A sound heart is a surer guide than an ill-trained conscience.

If you hold a cat by the tail you learn things you cannot learn any other way.

When a man stands on the verge of seventy-two you know perfectly well that he never reached that place without knowing what this life is - heartbreaking bereavement.

If the metrics you are looking at aren't useful in optimizing your strategy - stop looking at them.

Thousands of geniuses live and die undiscovered - either by themselves or by others.