The world is full of signs and wonders that come, and go, and if you are lucky you might catch the tail of one.
我不害怕变老。我认为变老是一种特权。
我们不能总是为我们的青年建造未来，但我们可以为未来建造我们的青年。
The division of labor is limited by the extent of the market.
I don't regret anything I've done.