Imagination is more powerful than knowledge.

Intelligent life on other planets? I'm not even sure there is on earth!

The more a country makes military weapons, the more insecure it becomes: if you have weapons, you become a target for attack.

To the Master's honor all must turn, each in its track, without a sound, forever tracing Newton's ground.

A model should be as simple as it can be but no simpler

Brief is this existence, as a visit in a strange house. The path to be pursued is poorly lit by a flickering consciousness.

The basic laws of the universe are simple, but because our senses are limited, we can’t grasp them. There is a pattern in creation.