Our heritage and ideals, our code and standards - the things we live by and teach our children - are preserved or diminished by how freely we exchange ideas and feelings.

The ideal man bears the accidents of life with dignity and grace, making the best of circumstances.

Some mountains appear when seawater recedes.

Of all the inventions of humans, the computer is going to rank near or at the top as history unfolds and we look back. It is the most awesome tool that we have ever invented. I feel incredibly lucky to be at exactly the right place in Silicon Valley, at exactly the right time, historically, where this invention has taken form.

The body is a community made up of its innumerable cells or inhabitants.

I am a slow walker, but I never walk back.

External nature is only internal nature writ large.

 It is human beings’ sinister mind that produces viruses as biological weapons.

Good habits formed at youth make all the difference.

Is it not enough to know the evil to shun it? If not, we should be sincere enough to admit that we love evil too well to give it up.

Hatred does not cease by hatred, but only by love; this is the eternal rule.

When everything seems to be going against you, remember that the airplane takes off against the wind, not with it.