Life can only be understood backwards; but it must be lived forwards.

别让太阳在我身上落下。

For systems, the analogue of a face-lift is to add to the control graph an edge that creates a cycle, not just an additional node.

多样化是投资中唯一的免费午餐。

The poor are not irrational; they are just as rational as anyone else, but they operate under very different constraints.

压力总是存在的，但我尽量不去想太多。我专注于比赛。