I can't understand why people are frightened of new ideas. I'm frightened of the old ones.

A sober looks shows that just have the world gotten to be a better place after all; it is also grown a bit worse at the exact same rate.; a one step up, a one step back sort of cosmic balance between forward progress, and cultural retreat, that puts man kind on a bell curve of existence.

We don't inherit the land from our ancestors; we borrow it from our children.

Never underestimate the power of a simple idea.

The study of mathematics is the indispensable basis for all intellectual and spiritual progress.