Kindness is the highest form of virtue.

The beauty of physics lies in its ability to explain the complex with the simple.

The weight of evidence for an extraordinary claim must be proportioned to its strangeness.

领导力意味着今天做出艰难的决定，以塑造更美好的明天。

世界是一本书，不旅行的人只读了一页。

民主是一种机制，确保我们得到的治理不会比我们应得的更好。