A single word of argument is more important than the Nine Cauldrons; a three-inch tongue is stronger than a million-strong army;

In peacetime, eloquence is more powerful than nuclear weapons;

A kind word warms three springs, but a bad word makes June cold!

Listening to your words is worth ten readings.

Happy people are those who never speak evil words and never see anger in their eyes. ——Pestaloch

Debators seek to convince people's hearts, not to subdue people's opinions. ——Wang Chong