But who prays for Satan? Who, in eighteencenturies, has had the common humanity to pray for the one sinner that needed it most?（From Jane Lampton Clemens）

To love is to risk, but it is a risk worth taking.

Humility is the starting point of wisdom, and pride is the endpoint of foolishness.

There are two possible outcomes: if the result confirms the hypothesis, then you've made a measurement. If the result is contrary to the hypothesis, then you've made a discovery.

神奇的数字七，加减二：我们信息处理能力的一些限制。

穷人的时间总被廉价出售，却永远买不到时间。