人声是最美的乐器，也是最难演奏的乐器。
The human voice is the most beautiful instrument of all, and the most difficult to play.
Focus on being productive instead of busy.
It is in the thirties that we want friends. In the forties we know they won't save us any more than love did.
如果你不适应变化，你就会落后。
爱在知识的尽头开始。