你必须有一个梦想，这样你才能在早上起床。

The act of writing is an act of courage.

Sometimes you just have to put on lip gloss and pretend to be psyched.

True leadership in energy means balancing economic growth with environmental responsibility.

一个有趣的事实是，岩石越古老，与今天的岩石差异越大。

If you are not willing to learn, no one can help you. If you are determined to learn, no one can stop you.

人类最美丽和最丑陋的倾向都不是固定生物本性的一部分，而是创造人类的社会过程的结果。