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).)
If thou must love me, let it be for nought Except for love's sake only. Do not say "I love her for her smile—her look—her way Of speaking gently,—for a trick of thought That falls in well with mine, and certes brought A sense of pleasant ease on such a day"— (Elizabeth Barrett Browning (1806-1861), British poet. Sonnets from the Portuguese, sonnet 14.)