Keats on Negative Capability

“. . . [S]everal things dovetailed in my mind, and at once it struck me, what quality went to form a Man of Achievement especially in Literature and which Shakespeare posessed [sic] so enormously—I mean Negative Capability, that is when man is capable of being in uncertainties, Mysteries, doubts, without any irritable reaching after fact & reason—Coleridge, for instance, would let go by a fine isolated verisimilitude caught from the Penetralium [i.e., the vestibule or in-between space] of mystery, from being incapable of remaining content with half knowledge. This pursued through Volumes would perhaps take us no further than this, that with a great poet the sense of Beauty overcomes every other consideration, or rather obliterates all consideration.”
(Italics mine)