计算复杂性的本质是理解什么可以被有效地计算的极限。
The essence of computational complexity is to understand the limits of what can be computed efficiently.
Don't chase money, get in position and let money chase you.
风险控制是银行的生命线。
One who never turned his back but marched breast forward, never doubted clouds would break.
【释义】：慷慨但不浪费，节俭却不吝啬。