Authors:

True politeness is to social life what oil is to machinery, a thing to oil the ruts and grooves of existence. False politeness can shine without warming and glitter without vivifying.

Frances Ellen Watkins Harper, Frances Smith Foster (1990). “A Brighter Coming Day: A Frances Ellen Watkins Harper Reader”, p.397, Feminist Press at CUNY
True politeness is to social life what oil is to machinery, a thing to oil the ruts and grooves of existence. False politeness can shine without warming and glitter without vivifying.