None speak of the bravery, the might, or the intellect of Jesus; but the devil is always imagined as a being of acute intellect, political cunning, and the fiercest courage. These universal and instinctive tendencies of the human mind reveal much.
(Lydia M. Child (1802-1880), U.S. abolitionist, writer, editor. letter, Jan. 1843. Letters from New York, vol. 1, letter 34 (1843).)
... the living, vital truth of social and economic well-being will become a reality only through the zeal, courage, the non-compromising determination of intelligent minorities, and not through the mass.
(Emma Goldman (1869-1940), U.S. anarchist and author; born in Russia. Anarchism and Other Essays, 3rd rev. ed., ch. 2 (1917).)
Get it into your head once and for all, my simple and very fainthearted fellow, that what fools call humaneness is nothing but a weakness born of fear and egoism; that this chimerical virtue, enslaving only weak men, is unknown to those whose character is formed by stoicism, courage, and philosophy.
(Marquis de Sade (1740-1814), French author. Dolmancé, in "Dialogue the Seventh," Philosophy in the Bedroom (1795).)