A person is never happy except at the price of some ignorance.
Beware the barrenness of a busy life.
The real opposition is that between the ego-bound man, whose existence is structured by the principle of having, and the free man, whose existence is structured by the principle of being.
儿童教育是人类最重要的一个问题。
The man who is fit to work at any particular trade is unable to understand the science of that trade without the help and guidance of those who are working with him or over him.
