The dead are not powerless. Dead, is not powerless.

The founders of a new colony, whatever Utopia of human virtue and happiness they might originally project, have invariably recognized it among their earliest practical necessities to allot a portion of the virgin soil as a cemetery, and another portion as the site of a prison.

一个好的数学家是能看到定理之间类比关系的人。一个伟大的数学家是能看到类比关系之间的类比关系的人。

真正的成熟始于我们接受自己永远无法停止成长。

农业的未来在于科技。

We must balance economic growth with environmental stewardship.

生活就像一辆十档变速自行车，我们有各种档位选择，很多人却忘了用。