In the twenty-first century, the robot will take the place which slave labor occupied in ancient civilization.

Anti-social behavior is a trait of intelligence in a world full of conformists.

Sometimes I feel that by not marrying, I made too great a sacrifice to my work.

I do not rush into constructive work. When I get an idea, I start right away to build it up in my mind. I change the structure, I make improvements, I experiment, I run the device in my mind. It is absolutely the same to me whether I operate my turbine in thought or test it actually in my shop. It makes no difference, the results are the same. In this way, you see, I can rapidly develop and perfect an invention, without touching anything.

Of all things I liked books best.

The only method compatible with our notions of civilization and the race is to prevent the breeding of the unfit by sterilization and the deliberate guidance of the mating instinct. [...] The trend of opinion among eugenists is that we must make marriage more difficult. Certainly no one who is not a desirable parent should be permitted to produce progeny.

The individual is ephemeral, races and nations come and pass away, but man remains.