Nothing exists but you. And you are but a thought.

There is no salvation for us but to adopt Civilization and lift ourselves down to its level.

Concentration of power in a political machine is bad; and an Established Church is only a political machine; it was invented for that; it is nursed, cradled, preserved for that; it is an enemy to human liberty, and does no good which it could not better do in a split-up and scattered condition.

Eat a live frog first thing in the morning and nothing worse will happen to you the rest of the day.

How unfortunate and how narrowing a thing it is for a man to have wealth who makes a god of it instead of a servant

The man who is a pessimist before 48 knows too much; if he is an optimist after it, he knows too little.

All I care to know about a man is that he is a human being... he can't be any worse.