Don't watch the clock; do what it does. Keep going.

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.

I don’t do features, I do favors.

和颜悦色，善意待人，就会亲如兄弟；恶声恶气，粗暴待人，比使用兵器更加伤人。管子的这些话对当今的社交活动、公共关系和人际交往仍有重要的借鉴意义。