Logic is like the sword - those who appeal to it, shall perish by it.

Look before you leap for as you sow, ye are like to reap.

A physician's physiology has much the same relation to his power of healing as a cleric's divinity has to his power of influencing conduct.

All philosophies, if you ride them home, are nonsense, but some are greater nonsense than others.

The youth of an art is, like the youth of anything else, its most interesting period. When it has come to the knowledge of good and evil it is stronger, but we care less about it.

Evil is like water, it abounds, is cheap, soon fouls, but runs itself clear of taint.

From a worldly point of view, there is no mistake so great as that of being always right.