... in the happy laughter of a theatre audience one can get the most immediate and numerically impressive guarantee that there is nothing in one's mind which is not familiar to the mass of persons living at the time.
(Rebecca West (1892-1983), British author. The Strange Necessity, ch. 12 (1928).)
This crown to crown the laughing man, this rose-wreath crown: I myself have set this crown upon my head, I myself have pronounced my laughter holy.
(Friedrich Nietzsche (1844-1900), German philosopher, classical scholar, critic of culture. Friedrich Nietzsche, Sämtliche Werke: Kritische Studienausgabe, vol. 4, p. 366, eds. Giorgio Colli and Mazzino Montinari, Berlin, de Gruyter (1980). Zarathustra, in Thus Spoke Zarathustra, Fourth and Last Part, "On the Higher Man," section 18 (issued privately in 1885, publication in 1892).)
You can forgive people who do not follow you through a philosophical disquisition; but to find your wife laughing when you had tears in your eyes, or staring when you were in a fit of laughter, would go some way towards a dissolution of the marriage.
(Robert Louis Stevenson (1850-1894), Scottish novelist, essayist, poet. Virginibus Puerisque, title essay, pt. 1 (1881).)