On the contrary, the nearer you come into relation with a person, the more necessary do tact and courtesy become.

Except in cases of necessity, which are rare, leave your friend to learn unpleasant truths from his enemies; they are ready enough to tell them.

Good-breeding NEVER forgets that amour-propre is universal.

When you read the story of the Archbishop and Gil Blas, you may laugh, if you will, at the poor old man's delusion; but don't forget that the youth was the greater fool of the two, and that his master served such a booby rightly in turning him out of doors.
-- You need not get up a rebellion against what I say, if you find everything in my sayings is not exactly new.

You can't possibly mistake a man who means to be honest for a literary pickpocket.