What is this world's delight, Lightening that mocks the night, Brief as even as bright - John Keats

Do not all charms fly / At the mere touch of cold philosophy?

I met a lady in the meads,
Full beautiful — a faery's child,
Her hair was long, her foot was light,
And her eyes were wild.

Brown and Dilke walked with me and back from the Christmas pantomime. I had not a dispute but a disquisition, with Dilke on various subjects; several things dove-tailed in my mind, and at once it struck me what quality went to form a Man of Achievement, especially in Literature, and which Shakespeare possessed so enormously - I mean Negative Capability, that is, when a man is capable of being in uncertainties, mysteries, doubts, without any irritable reaching after fact and reason - Coleridge, for instance, would let go by a fine isolated verisimilitude caught from the Penetralium 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.