We always hope, and in all things it is better to hope than to despair.

There is nothing so terrible as activity without insight.

The man with insight enough to admit his limitations comes nearest to perfection.

The formation of one's character ought to be everyone's chief aim.

It is therefore not unreasonable to suppose that some portion of the neglect of science in England, may be attributed to the system of education we pursue.

The assumption that nature is all there is, and that nature has been governed by the same rules at all times and places, makes it possible for natural science to be confident that it can explain such things as how life began.

We all need to figure out what's right for us because nothing about life is one size fits all. Even for an Olympian, that's for sure. And such discovery starts with you paying attention - to yourself.

I grew up in Adelaide, Australia. No one in my family had finished high school, and I was smart at mathematics, so I became an academic and got my Ph.D. in computer science at Stanford. I didn't set out to be a businessperson.