Human essence is not an abstraction inherent in a single person. In fact, it is the sum of all social relationships.

If the love lasts for a long time, how can it last day and night?

Every well-educated person has a forbidden commandment: don't lose your temper.

The journey of a gentleman is to cultivate one’s character through tranquility, and to cultivate one’s virtue through frugality. If it is not indifferent, it will not clear its ambitions, and if it is not tranquil, it will not be far-reaching.

A survivor who suffered inhuman torture in the German Nazi concentration camps during World War II moved to the United States after the war and became the principal of a middle school. Whenever a new teacher came to the school, , he would give the new teacher a letter, which reads: "Dear teacher, I am a survivor of a Nazi concentration camp. I have seen with my own eyes a situation that humans should not see: the gas chamber was created by Engineers with specialized knowledge built things; children were poisoned by knowledgeable doctors; young children were killed by well-trained nurses; women and babies were shot dead by soldiers with high school or college education. Seeing all this, I wondered: What is education? For what? My request is: Please help students grow into human beings. Your efforts should never be used to create knowledgeable monsters, versatile psychopaths, and highly educated butchers. Only when children have human nature can their ability to read, write and arithmetic be valuable.