Sir, that all who are happy, are equally happy, is not true. A peasant and a philosopher may be equally satisfied, but not equally happy. Happiness consists in the multiplicity of agreeable consciousness.
(Samuel Johnson (1709-1784), British author, lexicographer. quoted in James Boswell, Life of Dr. Johnson, entry, Feb. 1766 (1791).
Johnson was arguing against the proposition by David Hume (in the essay The Sceptic) that "a little miss, dressed in a new gown for a dancing-school ball, receives as complete enjoyment as the greatest orator, who triumphs in the splendor of his eloquence.")
This mother needs happy, reputable children, and that one needs unhappy ones: otherwise she cannot show her kindness as a mother.
(Friedrich Nietzsche (1844-1900), German philosopher, classical scholar, critic of culture. Friedrich Nietzsche, Sämtliche Werke: Kritische Studienausgabe, vol. 2, p. 267, eds. Giorgio Colli and Mazzino Montinari, Berlin, de Gruyter (1980). Human, All-Too-Human, "Woman and Child," aphorism 387, "Maternal Kindness," (1878).)