Maud C.Cooke

"Observe carefully what pleases or displeases you in others, and be persuaded that, in general, the same things will please or displease them in you."

These little things that mark one as being "to the manor born" are not the growth of moments but the slow accretions of years;

Duc de Morny's definition of a polite man, as "one who listens with interest to things he knows all about, when they are told by a person who knows nothing about them."