The person you are most afraid to contradict is yourself.

The curious mind embraces science; the gifted and sensitive, the arts; the practical, business; the leftover becomes an economist

We should reward people, not ridicule them, for thinking the impossible.

By all means, avoid words—threats, complaints, justification, narratives, reframing, attempts to win arguments, supplications; avoid words!

An ad hominem attack against an individual, not against an idea, is highly flattering. It indicates that the person does not have anything intelligent to say about your message.

When you beat up someone physically, you get excercise and stress relief; when you assault him verbally on the Internet, you just harm yourself.

Don't disturb complicated systems that have been around for a very long time. We don't understand their logic. Don't pollute the planet. Leave it the way we found it, regardless of scientific 'evidence'.