The world must be set in order. The time has come when ethics must be dealt with by science, and never again by mere opinion.

The theory of probabilities is at bottom nothing but common sense reduced to calculus.

争论日益激烈：是PL/IBachtrian还是Dromedary？

We all live in the past, we take a minute to know someone, an hour to like someone , a day to love someone , but a whole life to forget someone.

一本好书是我生命中的一件大事。