The pursuit of knowledge is a journey without end, and each discovery is a step into the unknown.

Give a man a fire and he's warm for a day, but set fire to him and he's warm for the rest of his life.

To wear your heart on your sleeve isn't a very good plan; you should wear it inside, where it functions best.

The behaviorist asks: Why don't we make what we can observe the real field of psychology?

Everything flows, everything changes, nothing remains.

不要让成功冲昏头脑，也不要让失败打击你的心。

承诺最慎重的人是履行承诺最忠实的人。