煤炭的未来取决于我们能否使其更清洁、更高效。

预测未来的最好方式就是创造未来。

When truth is buried， it grows. It chokes. It gathers such an explosive force that on the day it bursts out， it blows up everything with it. 

Freedom is not merely the opportunity to do as one pleases; neither is it merely the opportunity to choose between set alternatives. Freedom is, first of all, the chance to formulate the available choices, to argue over them—and then, the opportunity to choose.

The magi brought valuable gifts, but that was not among them. This dark assertion will be illuminated later on.

The only way to get through life is to laugh your way through it. You either have to laugh or cry. I prefer to laugh. Crying gives me a headache.