Your self-worth is determined by you. You don’t have to depend on someone telling you who you are.
农业的真正进步是用健康衡量的，而不仅仅是产量。
Mathematics is not a careful march down a well-cleared highway, but a journey into a strange wilderness, where the explorers often get lost.
互联网是给每个人的。
In the information age, knowledge is the only sustainable competitive advantage.