If it is the result of a pure love, there can be nothing sensual in marriage. Chastity is something positive, not negative. It is the virtue of the married especially. All lusts or base pleasures must give place to loftier delights. They who meet as superior beings cannot perform the deeds of inferior ones.
Henry David Thoreau (1817–1862), U.S. philosopher, author, naturalist. Essay on "Chastity and Sensuality" letter, September 1852, to Harrison Blake, in The Writings of Henry David Thoreau, vol. 6, p. 205, Houghton Mifflin (1906).