The young do not know enough to be prudent, and therefore they attempt the impossible, and achieve it, generation after generation.

True leadership in aggregates means balancing productivity with planetary responsibility.

出自《魏源集·魏源诗文》。万种感情交集在这(与林则徐见面)苍茫的一天，朋友相逢竟然一句话也说不出来。

 错误的事实对科学进步极为有害，因为它们常常长久存在。