December 31st Curiosity and Interest as Guides to Reading Thomas Carlyle (1795–1881). Inaugural Address at Edinburgh. Vol. 25, pp. 364-374 of The Harvard Classics The most unhappy man, Carlyle says, is the man who has no real work - no interest in life. To avoid this miserable state, he advises faithful and diligent reading along the lines dictated by curiosity and interest.