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.
-- François, Duc de La Rochefoucauld (1613-80), French writer, moralist.
Sentences et Maximes Morales, no. 83 (1678)
