book constitutes a complete Essay on Man, written for the best purpose,
to vindicate the ways of God.
Ver. 17. _Say first, of God above, or man below, &c._] The poet having declared his subject; his end of writing; and the quality of his adversaries, proceeds, from ver. 16 to 23, to instruct us, from whence he intends to draw his arguments; namely, from the visible things ...