每位研究者都梦想着做一些能够帮助世界的事情。

有些时候你必须去挑战伟大。。

We live in time—it holds us and moulds us—but I’ve never felt I understood it very well.

Mental activity is the organism's dialogue with its environment.

The beauty of life lies in the details.

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.

好老师不是注满一桶水，而是点燃一把火。