François de La Rochefoucauld, 2nd Duke of La Rochefoucauld, Prince de Marcillac (French: [fʁɑ̃swa d(ə) la ʁɔʃfuko]; 15 September 1613 – 17 March 1680) was an accomplished French moralist of the era of French Classical literature and author of Maximes and Memoirs, the only two works of his dense literary...
We all have strength enough to endure the misfortunes of others.
The charitable acts that count the most are those done without anyone knowing.
—Elin Hilderbrand in The Perfect Couple
Never tell all you know—not even to the person you know best.
—Agatha Christie in The Secret Adversary