People and stars are made of the same stuff.

The most serious problem facing humankind is climate change.

My father was a very good Boy Scout. He was very skilled with knots, and he showed me how to tie a bow tie.

The future of commerce is going to be all electronic. The gold standard was a fine idea, but electronic changes of funds and credits will be the future.

Science is the best idea humans have ever had. The more people who embrace that idea, the better.

Intuitively you want some place [such as your phone] to store phone numbers, so you have that part of your brain to do other tasks.

Evolution is not something you can believe in or not believe in like do you believe in gravity.