It is no tragedy to do ungrateful people favors, but it is unbearable to be indebted to a scoundrel.
Francois de La RochefoucauldOne thing which makes us find so few people who appear reasonable and agreeable in conversation is, that there is scarcely any one who does not think more of what he is about to say than of answering precisely what is said to him.
Francois de La Rochefoucauld