A favor ill – placed is great waste.

He who sows courtesy reaps friendship, and he who plants kindness gathers love.

The only way to treat a Prussian is to step on his toes until he apologizes.

To speak kindly does not hurt the tongue.

Good nature without prudence, is foolishness.

If you owe a dog anything, call him “sir.”

An excess of courtesy is discourtesy.

Courteous men learn courtesy from the discourteous.

Never spend time with people who don’t respect you.