Sustainable quarrying isn't an option; it's our obligation to future generations.

有时候，只要你坚持下去，活下去，就已经是非凡的成就了。

Art history is always written from somewhere - the question is where you're standing when you write it.

Wealth should not be concentrated in the hands of a few, but should be distributed among all through fair competition.

Efficiency without ethics is just speed in the wrong direction.

历史学家的首要职责是如实讲述他所见的真相，无论这会取悦还是触怒何人。

释义：所谓英雄，必须胸怀远大志向，腹有良谋，有包含宇宙的智慧，吞吐天地的气概。

What good's an opinion if you can't change it?

最好的领导者是那些激励他人做到最好的人。

现代采石要求我们同时成为地质学家、生态学家和社区外交官。

绘本是许多孩子参观的第一个艺术画廊。