"Don't flatter yourself that friendship authorizes you to say disagreeable things to your intimates. The nearer you come into relation with a person, the more necessary do tact and courtesy become."
"I know of no more disagreeable situation than to be left feeling generally angry without anybody in particular to be angry at."
"The excellency of every art is its intensity, capable of making all disagreeable evaporate."
"Telephone, n. An invention of the devil which abrogates some of the advantages of making a disagreeable person keep his distance."