A man's life is limited, but service to the people is infinite.

译文：人不要做伤天害理之事，就不会有人恨得咬牙切齿。赏析：人做坏事自然就会有人讨厌，甚至是除之而后快的心。人做坏事，就是给自己带去祸患。

写作是对人类的一种爱的行为。

Physics is not just about solving problems, it's about understanding the nature of reality.

Leadership is about making others better as a result of your presence and making sure that impact lasts in your absence.