Psychological theories must pass the test of practical experience.
Overtaking on curves requires knowing where the curves are.
我们不是靠运气,而是靠勤奋和智慧走到今天的。
我的箴言一贯如此:英雄不问来路。
I neither affirm nor deny, but I suspend my judgment.
晏子春秋
We have a responsibility to future generations to leave the planet in better shape than we found it.
我们有责任为子孙后代留下一个比我们发现时更好的地球。