An emotion as much tells you nothing about reality, beyond the fact that something makes you feel something.

The great creators - the thinkers, the artists, the scientists, the inventors - stood alone against the men of their time. Every great new thought was opposed. Every great new invention was denounced. The first motor was considered foolish. The airplane was considered impossible... But the men of unborrowed vision went ahead. They fought, they suffered and they paid. But they won.

Civilization is the progress toward a society of privacy.

Money is a tool of exchange, which can't exist unless there are goods produced and men able to produce them. Money is the material shape of the principle that men who wish to deal with one another must deal by trade and give value for value.

I can accept anything, except what seems to be the easiest for most people: the half-way, the almost, the just-about, the in-between.

Genius is an exaggeration of dimension. So is elephantiasis. Both may be only a disease.

The quickest way to kill the human spirit is to ask someone to do mediocre work.