A person is never happy except at the price of some ignorance.

研究明史需要全面理解其独特的社会结构和文化背景。

Sleep is not a luxury; it’s a necessity for your brain.

瀑布歌道：「当我得到自由时，便有了歌声。」

And gladly would learn， and gladly teach.

对这个世界有所助益是获得快乐的唯一途径。

The world is a place of the living, and the dead have no place in it. The dead are nothing. They are not even a memory.

孔子说：“明智的人不会迷惑，仁爱的人不会忧愁，勇敢的人不会害怕。”