I have come to believe that a great teacher is a great artist and that there are as few as there are any other great artists. Teaching might even be the greatest of the arts since the medium is the human mind and spirit.

弦理论是二十一世纪物理学的一部分，偶然落入了二十世纪。

企业的核心竞争力在于创新，没有创新就没有未来。

我们认为这些真理是不言而喻的：人人生而平等。

实现明天的唯一限制将是我们今天的疑虑。

I don't count my sit-ups. I only start counting when it starts hurting.

在写作的过程中，我们面对自己最深的恐惧和欲望。