Women want to serve, and this is where their happiness lies: but the free spirit does not want to be served, and this is where his happiness lies.
(Friedrich Nietzsche (1844-1900), German philosopher, classical scholar, critic of culture. Friedrich Nietzsche, Sämtliche Werke: Kritische Studienausgabe, vol. 2, p. 282, eds. Giorgio Colli and Mazzino Montinari, Berlin, de Gruyter (1980). Human, All-Too-Human, "Woman and Child," aphorism 432, "The Dissonance of Two Concords," (1878).)
Happiness is the only condition for a long healthy life. But true happiness itself is not conditional, because it is inherited essence of life. It is within, not without. One cannot earn happiness but can learn the art of happiness.
So far as laws and institutions avail, men should have equality of opportunity for happiness; that is, of education, wealth, power. These make happiness secure. An equal diffusion of happiness so far as laws and institutions avail.
(Rutherford Birchard Hayes (1822-1893), U.S. president. Diary and Letters of Rutherford Birchard Hayes: Nineteenth President of the United States, vol. IV, p. 607, ed. Charles Richard Williams, The Ohio State Archaeological and Historical Society, 5 vols. (1922-1926), Diary (October 19, 1890).)