我们根据世界对生存的效用性来感知它。
We perceive the world in terms of its utility for our survival.
The best way to find yourself is to lose yourself in the service of others.
解决一个数学问题就是揭开宇宙拼图的一块。
真正的朋友是很难找的。
A ship in port is safe, but that is not what ships are built for.
生活就像一首歌，有高潮也有低谷，但其中总有美好。