知识的最大敌人不是无知，而是知识的幻觉。
你无法取悦所有人，所以不要尝试。
Force and fraud are in war the two cardinal virtues.
The central task of education is to implant a will and facility for learning; it should produce not learned but learning people. The truly human society is a learning society, where grandparents, parents, and children are students together.