Every remedy is a desperate remedy. Every cure is a miraculous cure. Curing a madman is not arguing with a philosopher; it is casting out a devil.

The telescope makes the world smaller; it is only the microscope that makes it larger.

The traveler sees what he sees, the tourist sees what he has come to see.

Very few people in the world would care to listen to the real defense of their own characters. The real defense, the defense which belongs to the Day of Judgment, would make such damaging admissions, would clear away so many artificial virtues, would tell such tragedies of weakness and failure, that a man would sooner be misunderstood and censured by the world than exposed to that awful and merciless eulogy.

One may understand the cosmos, but never the ego; the self is more distant than any star.

To be clever enough to get all that money, one must be stupid enough to want it.

Moral issues are always terribly complex for someone without principles.