Everyone is in favor of free speech. Hardly a day passes without its being extolled， but some people's idea of it is that they are free to say what they like， but if anyone else says anything back， that is an outrage.

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。

生活中唯一真正的失败是不尝试。

解释：君子有三件值得可惜的事：一辈子不学习，是第一件可惜的事；一天无所事事，是第二件可惜的事；一个人的名声败坏，是第三件可惜的事。