That man is not truly brave who is afraid either to seem or to be, when it suits him, a coward.
Source: Marginalia, in Graham's Magazine (Philadelphia), Dec. 1846.
-- Edgar Allan Poe, (Jan 19 1809-1849), US poet, short-story writer; He is famous for his mysterious, macabre stories and poems, e.g., The Gold Bug, 1843 and The Raven, 1845.