The coal industry must evolve to meet modern environmental standards, or it will become obsolete.

最好的数学不仅仅是逻辑的；它是直观和创造性的，将严谨与想象力结合在一起。

真正的勇气不是没有恐惧，而是在恐惧面前依然前行。

Light is the most important material in architecture.

美联储目前没有预测会出现经济衰退。

My mind is my weapon. My brother has his sword, King Robert has his warhammer, and I have my mind... And a mind needs books as a sword needs a whetstone, if it is to keep its edge.

数学的语言是普遍的，超越了文化和语言的障碍。

坏人活着是为了吃与喝，而好人却是为了活着才吃与喝。