We cannot always assure the future of our friends; we have a better chance of assuring our future if we remember who our friends are.
(Henry Kissinger (b. 1923), German-born U.S. Republican politician, secretary of state. "A Visit to the Shah of Iran," ch. 29, The White House Years (1979).
Said of the changing U.S. policy toward the Shah of Iran.)
A friend whose hopes we cannot satisfy is a friend we would rather have as an enemy.
(Friedrich Nietzsche (1844-1900), German philosopher, classical scholar, critic of culture. Friedrich Nietzsche, Sämtliche Werke: Kritische Studienausgabe, vol. 3, p. 226, eds. Giorgio Colli and Mazzino Montinari, Berlin, de Gruyter (1980). Dawn, "Fourth Book," aphorism 313, "A Friend We no Longer Want," (1881).)
But it is hard to know them from friends, they are so obsequious and full of protestations; for a wolf resembles a dog, so doth a flatterer a friend.
(Sir Walter Raleigh (1552-1618), British author, soldier, explorer. repr. In The Works of Sir Walter Raleigh, vol. 2 (1751), also in Advice to a Son (1962). "Wisest Men Have Been Abused by Flatterers," ch. 3, Instructions to His Son and to Posterity (1632).)