The most dangerous poison is the feeling of achievement. The antidote is to think every morning, 'What can be done better?'
惩罚教会的是恐惧，而不是责任感。
Don't give up easily, persistence is victory.
Happiness is not something ready-made. It comes from your own actions.
Thinking is behavior. The muscular habits learned in overt speech are responsible for implicit or internal speech (thought).