领导力就是做出艰难的决定并坚持下去。

Psychology is a science, and teaching is an art; and sciences never generate arts directly out of themselves.

The world is full of people who have never, since childhood, met an open doorway with an open heart.

Generally speaking, envy, resentment, and self-pity are disastrous modes of thoughts.Self-pity gets fairly close to paranoia, and paranoia is one of the very hardest things to reverse.

I don't want to make things that are difficult for people. I want to make things that are easy.

可持续性是水产养殖的未来，我们必须投资于环保技术。

最伟大的发现往往来自最简单的问题。

Mental processes exist because they serve a purpose.