It takes no more actual sagacity to carry on the everyday hawking and haggling of the world, or to ladle out its normal doses of bad medicine and worse law, than it takes to operate a taxicab or fry a pan of fish.

Hygiene is the corruption of medicine by morality.

Any man who afflicts the human race with ideas must be prepared to see them misunderstood.

The most satisfying and ecstatic faith is almost purely agnostic. It trusts absolutely without professing to know at all.

Human progress is furthered, not by conformity, but by aberration.

Liberty is not for these slaves; I do not advocate inflicting it against their conscience. On the contrary, I am strongly in favor of letting them crawl and grovel all they please before whatever fraud or combination of frauds they choose to venerate...Our whole practical government is grounded in mob psychology and the Boobus Americanus will follow any command that promises to make him safer.

The value the world sets upon motives is often grossly unjust and inaccurate.