I have to be alone very often. I'd be quite happy if I spent from Saturday night until Monday morning alone in my apartment. That is how I refuel.

目标不是完美，而是进步。

The computer is the most remarkable tool that we've ever come up with. It's the equivalent of a bicycle for our minds.

I never know what I think about something until I read what I've written on it.

I'm the reason you're fed, I'm the reason you're led.

大西洋两岸大陆的契合，是大陆漂移理论最引人注目且最关键的验证。

I don't sing because I'm happy; I'm happy because I sing.

政策制定者应乐于根据新证据修正他们的观点。