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. Thomas Jefferson
For me, politeness is a sine qua non of civilization. Robert A. Heinlein
Politeness, n: The most acceptable hypocrisy. Ambrose Bierce
I place a high moral value on the way people behave. I find it repellent to have a lot, and to behave with anything other than courtesy in the old sense of the word - politeness of the heart, a gentleness of the spirit. Fran Lebowitz