Famous quotes containing the words interchange and/or opened:
“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 (1613–1680)
“The cruellest lies are often told in silence. A man may have sat in a room for hours and not opened his mouth, and yet come out of that room a disloyal friend or a vile calumniator.”
—Robert Louis Stevenson (1850–1894)