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Man gives every reason for his conduct save one, every excuse for his crimes save one, every plea for his safety save one; and that one is his cowardice

George Bernard Shaw (2015). “The Collected Works of George Bernard Shaw: Plays, Novels, Articles, Letters and Essays: Pygmalion, Mrs. Warren’s Profession, Candida, Arms and The Man, Man and Superman, Caesar and Cleopatra, Androcles And The Lion, The New York Times Articles on War, Memories of Oscar Wilde and more”, p.2046, e-artnow
Man gives every reason for his conduct save one, every excuse for his crimes save one, every plea for his safety save one; and that one is his cowardice