所有的悲剧以死亡结束，所有的喜剧以结婚告终。

过去从未死去，它甚至从未过去。

The strongest is never strong enough to be always the master， unless he transforms strength into right， and obedience into duty.

Learning is a process of creating and strengthening neural pathways.

Collaboration is key to solving the complex energy challenges we face today.

译文：我本来是一介平民，在南阳务农亲耕，只想在乱世中苟且保全性命，不谋求在诸侯之中闻名显达。