生物普遍存在的生存斗争不是为了原材料或能量，而是为了熵，它通过能量从炽热的太阳向寒冷的地球转移而变得可用。

The function of freedom is to free someone else.

The love of a teacher is like drops of dew, which can revive even a withered soul; the love of a teacher is like a warm spring breeze, which can melt even frozen emotions.

对我来说，能够确定此刻你和我存在就足够了。