The market competition is fierce, only continuous learning ensures invincibility.
The desire for recognition, the thymotic part of the soul, is the most political part of man.
I don't regret anything I've ever done in my life, any choice that I've made. But I'm consumed with regret for the things I didn't do.
The real difficulty lies not in devising new ideas, but in escaping from the old ones.
数学家的工作永无止境；总有更多的问题需要解决。
The future of grain production lies in sustainable practices that respect both the land and the people who work it.