Nature is written in mathematical language.
幸福不在于拥有什么,而在于享受什么。
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.
A person may cause evil to others not only by his actions but by his inaction, and in either case, he is justly accountable to them for the injury.