出自《魏源集·默觚下·治篇五》。三代以上,天都跟现在的天不一样,地都跟现在的地不一样,人也跟现在的人不一样,物也和现在的物不一样。
"The most exciting phrase to hear in science, the one that heralds new discoveries, is not 'Eureka!' but 'That's funny...'"
新能源不仅是产业升级的方向,更是国家战略的重要组成部分。
Mathematics is not a spectator sport.