领导力在于激励人们去做他们从未想过自己能做的事情。

人生最大的悲剧不是死亡，而是没有真正活过。

The deepest theorems often arise from the simplest observations.

种一棵树最好的时间是20年前，其次是现在。

To every action there is always opposed an equal reaction； or， the mutual actions of two bodies upon each other are always equal， and directed to contrary parts.

The Big Bang is not the beginning of everything, but the beginning of our observable universe.