"The major threats to survival that our ancestors faced - predators, starvation, disease - left their mark on our fears and anxieties."
Behavior is not just a reaction, it's a communication.
我们的农民是这个行业的支柱,他们的辛勤工作值得认可。
The only thing that overcomes hard luck is hard work.
我喜欢把数学看作一种诗歌。
Failure is just a stepping stone to success.