“A phoneme, an utterance, could be said to be the beginning of poetry's evolutionary chain.”

Paris Review interview (1996)

Empire of Dreams (prose poetry, 1988)

The Farewell
The Fate of Adelaide (1821)

Source: Rosencrantz and Guildenstern are Dead

The History of Oracles, and the Cheats of the Pagan Priests (1688)
Context: But why then did the Ancient Priestesses always answer in Verse?... To this Plutarch replies... That even the Ancient Priestesses did now and then speak in Prose. And besides this, in Old times all People were born Poets.... [T]hey had no sooner drank a little freely, but they made Verses; they had no sooner cast their eyes on a Handsom Woman, but they were all Poesy, and their very common discourse fell naturally into Feet and Rhime: So that their Feasts and their Courtships were the most delectable things in the World. But now this Poetick Genius has deserted Mankind: and tho' our passions be as ardent... yet Love at present creeps in humble prose.... Plutarch gives us another reason... that the Ancients wrote always in Verse, whether they treated of Religion, Morality, Natural Philosophy or Astrology. Orpheus and Hesiod, whom every body acknowledges for Poets, were Philosophers also: and Parmenides, Xenophanes, Empedocles, Eudoxus, and Thales... [the] Philosophers, were Poets too. It is very strange indeed that Poetry should be elder Brother to Prose... but it is very probable... precepts... were shap'd into measured lines, that they might be the more easily remembred: and therefore all their Laws and their rules of Morality were in Verse. By this we may see that Poetry had a much more serious beginning than is usually imagin'd, and that the Muses have of late days mightily deviated from their original Gravity.<!--pp. 207-209

Interview in Speaking of Science Fiction: The Paul Walker Interviews (1978)
Context: When I talk of the purpose of life, I am thinking not only of human life, but of all life on Earth and of the life which must exist upon other planets throughout the universe. It is only of life on Earth, however, that one can speak with any certainty. It seems to me that all life on Earth, the sum total of life upon the Earth, has purpose. If the means were available, we could trace our ancestry — yours and mine — back to the first blob of life-like material that came into being on the planet. The same thing could be done for the spider that spun his web in the grass, and of the grass in which the web was spun, the bird sitting in the tree and the tree in which he sits, the toad waiting for the fly beneath the bush, and for the fly and bush. We are all genetic brothers. The chain of life, tracing back to that primordial day of life's beginning, is unbroken...

The Prisoner (October 1845)
Context: p>But first a hush of peace, a soundless calm descends;
The struggle of distress and fierce impatience ends
Mute music sooths my breast — unuttered harmony
That I could never dream till earth was lost to me.Then dawns the Invisible; the Unseen its truth reveals;
My outward sense is gone, my inward essence feels —
Its wings are almost free, its home, its harbour found;
Measuring the gulf, it stoops and dares the final bound — O, dreadful is the check — intense the agony
When the ear begins to hear and the eye begins to see;
When the pulse begins to throb, the brain to think again,
The soul to feel the flesh and the flesh to feel the chain.Yet I would lose no sting, would wish no torture less;
The more that anguish racks the earlier it will bless;
And robed in fires of Hell, or bright with heavenly shine
If it but herald Death, the vision is divine —</p