Environmentalism has already killed somewhere between 10-30 million people since the 1970s.

And that's how things are. A day is like a whole life. You start out doing one thing, but end up doing something else, plan to run an errand, but never get there. . . . And at the end of your life, your whole existence has the same haphazard quality, too. Your whole life has the same shape as a single day.

They are focused on whether they can do something. They never think whether they should do something.

Writing a book is a bit like going on location for a movie. You're absent from your life, your family, and your friends. You're psychologically gone, so you might as well be physically gone.

It's hard to decide who's truly brilliant; it's easier to see who's driven, which in the long run may be more important.

Nobody smart knows what they want to do until they get into their twenties or thirties.

That's human nature. Nobody does anything until it's too late.