The only way to get rid of a temptation is to yield to it.

Don't let anyone ever dull your sparkle.

数学是宇宙书写的语言。

保持开放心态的麻烦在于，人们总会坚持过来试图往里面塞东西。

Sustainability must be at the core of every decision we make in the coal industry.

The best investments are those that power both economies and ecosystems.

The ideas of economists and political philosophers， both when they are right and when they are wrong， are more powerful than is commonly understood. Indeed the world is ruled by little else. Practical men， who believe themselves to be quite exempt from any intellectual influence， are usually the slaves of some defunct economist.