"A story has no beginning or end: arbitrarily one chooses that moment of experience from which to look back or from which to look ahead."

Modern quarrying must marry the wisdom of geology with the innovation of engineering.

I'm not a prophet, I'm a messenger.

没有了目的，生活便郁闷无光。

量子力学的数学形式不仅仅是一种工具，而且是现实深层结构的反映。

神学是心灵的语言，而不是头脑的语言。

科学家必须有勇气捍卫自己的思想，即使它们不受欢迎。