Civil words cost nothing, and go a long way.

Speaking courteously requires little sacrifice, yet it can make an interaction easier and more pleasant for everyone involved.

The proverb encourages people not to overlook the value of a considerate tone. A small choice of words may have effects beyond the moment in which they are spoken.

Use it to encourage a polite response when someone is tempted to be curt, or to point out that courtesy can help in an ordinary disagreement or request.