The blood is moral: the blood is anti-slavery: it runs cold in the veins: the stomach rises with disgust, and curses slavery.
(Ralph Waldo Emerson (1803-1882), U.S. essayist, poet, philosopher. "Address Delivered in Concord on the Anniversary of the Emancipation of the Negroes in the British West Indies, August 1, 1844," Miscellanies (1883, repr. 1903).)
In view of the fact that the number of people living too long has risen catastrophically and still continues to rise.... Question: Must we live as long as modern medicine enables us to?... We control our entry into life, it is time we began to control our exit.
(Max Frisch (1911-1991), Swiss author, critic. Originally published as Tagebuch 1966-1971, Suhrkamp (1972). Sketchbook 1966-1971, p. 71, trans. by Geoffrey Skelton (1971), Methuen (1974).
Introduction to Frisch's semi-satirical musings about a "voluntary death association.")
Just as it is true that a stream cannot rise above its source, so it is true that a national literature cannot rise above the moral level of the social conditions of the people from whom it derives its inspiration.
(James Connolly (1870-1916), Irish syndicalist, Republican leader. Labour in Irish History, foreword (1910).)
That the sun will not rise to-morrow is no less intelligible a proposition, and implies no more contradiction, than the affirmation, that it will rise.
(David Hume (1711-1776), Scottish philosopher. Enquiries Concerning the Human Understanding and Concerning the Principles of Morals, sect. 4 ("Sceptical Doubts Concerning the Operations of the Understanding"), part 1, p. 25, ed. L. Selby-Bigge, M.A., London, Oxford University Press (1902).
From "An Enquiry Concerning Human Understanding.")
Before the land rose out of the ocean, and became dry land, chaos reigned; and between high and low water mark, where she is partially disrobed and rising, a sort of chaos reigns still, which only anomalous creatures can inhabit.
(Henry David Thoreau (1817-1862), U.S. philosopher, author, naturalist. Cape Cod (1855-1865), in The Writings of Henry David Thoreau, vol. 4, p. 71, Houghton Mifflin (1906).)