True love is like ghosts, which everyone talks about and few... - Francois de La Rochefoucauld

"Jealousy contains more of self-love than of love."

"No persons are more frequently wrong, than those who will not admit they are wrong."

"Neither the sun nor death can be looked at steadily."

"What men have called friendship is only a social arrangement, a mutual adjustment of interests, an interchange of services given and received; it is, in sum, simply a business from which those involved propose to derive a steady profit for their own self-love."

"However rare true love may be, it is less so than true friendship."