当我在那日子的终了，站在您的面前时，您将看见我的伤疤，而知道我有我的许多创伤，但也有我的医治的法儿。

能源转型不仅仅是从化石燃料转向可再生能源，更是要用更少的排放提供更多的能源。

"Leadership is not about being in charge. It's about taking care of those in your charge."

生命的复杂性不是理解的障碍，而是通向更深层次洞察的门户。

合作是关键，伟大的科学从来不是孤立完成的。

想象力是我们对抗现实最强大的武器。

Every ton of coal extracted should carry the weight of our commitment to the future.

If a Nation expects to be ignorant and free in a state of civilization,it expects what never was and never will be....If we are to guard against ignorance and remain free,it is the responsibility of every American to be informed."

Welcome, O life! I go to encounter for the millionth time the reality of experience and to forge in the smithy of my soul the uncreated conscience of my race.