解释：只有放弃一些事情不做，才能在别的一些事情上做出成绩。

過去を変えることはできないが、未来は変えられる。

If you ask an economist what’s driven economic growth, it’s been major advances in things that mattered – the mechanization of farming, mass manufacturing, things like that. The problem is, our society is not organized around doing that.

科学不在于永远正确，而在于逐渐减少错误。

I’m not a guy that’s going to let my passion down.

I must study politics and war that my sons may have liberty to study mathematics and philosophy.