Manners require time, as nothing is more vulgar than haste

Life is short, but there is always time enough for courtesy.

Then [good manners] must be inspired by the good heart. There is no beautifier of complexion, or form, or behavior, like the wish to scatter joy and not pain around us.

Good manners are made up of petty sacrifices

Passionless is vulgar ("Metier: Why I Don't Write Like Franz Kafka")

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