To make discoveries, you have to be curious about why the universe is the way it is.

He always pictured himself a libertarian, which to my way of thinking means "I want the liberty to grow rich and you can have the liberty to starve". It's easy to believe that no one should depend on society for help when you yourself happen not to need such help.

Theories are not so much wrong as incomplete

The day you stop learning is the day you begin decaying.

No sensible decision can be made any longer without taking into account not only the world as it is, but the world as it will be.

Mathematicians deal with large numbers sometimes, but never in their income.

I prefer rationalism to atheism. The question of God and other objects-of-faith are outside reason and play no part in rationalism, thus you don't have to waste your time in either attacking or defending.