On mindfulness: “The only means of strengthening one’s intellect is to make up one’s mind about nothing — to let the mind be a thoroughfare for all thoughts.”
To George & Georiana Keats 1819
“… – 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.”
“Do you not see how necessary a World of Pains and troubles is to school an Intelligence and make it a Soul? A Place where the heart must feel and suffer in a thousand diverse ways!”
To George & Georgiana Keats, May 1819.