In his famous book, Human Nature in Its Fourfold State, the Scottish Puritan, Thomas Boston (1676-1732) tells us that the four states of human nature are (1) The State of Innocence, (2) The State of Nature, (3) The State of Grace, and (4) The Eternal State. Boston's discourse offers a fascinating view of human nature. In his word, "In the way of the gospel, the sinner must stand before the Lord in an imputed righteousness--but corrupt nature is for...