The knowledge of courtesy and good manners is a very necessary study. It is, like grace and beauty, that which begets liking and an inclination to love one another at the first sight.

It's nice to be important, but it's more important to be nice.

Politeness, n. The most acceptable hypocrisy.

Courtesy is the due of man to man; not of suit-of-clothes to suit-of-clothes.

It is wise to apply the oil of refined politeness to the mechanism of friendship.

We must be as courteous to a man as we are to a picture, which we are willing to give the advantage of a good light.

All doors open to courtesy

There is a courtesy of the heart. It is akin to love. Out of it arises the purest courtesy in the outward behavior.

Courtesy is the politic witchery of great personages.

In truth, politeness is artificial good humor, it covers the natural want of it, and ends by rendering habitual a substitute nearly equivalent to the real virtue.