“Splendid if I overcome
My earthy passion,
But if I succeed not,
Still I have known happiness!”

Source: The Picture of Dorian Gray

On singing in "Julio Iglesias says 50-year singing career is 'a miracle'" https://www.reuters.com/article/us-people-julio-iglesias/julio-iglesias-says-50-year-singing-career-is-a-miracle-idUSKCN1T60WU in Reuters (2019 Jun 5)

Letter to his fiancée Lee, (31 July 1978), published in Gerald Durrell: An Authorized Biography by Douglas Botting (1999)
Context: I have seen a thousand sunsets and sunrises, on land where it floods forest and mountains with honey coloured light, at sea where it rises and sets like a blood orange in a multicoloured nest of cloud, slipping in and out of the vast ocean. I have seen a thousand moons: harvest moons like gold coins, winter moons as white as ice chips, new moons like baby swans’ feathers.
I have seen seas as smooth as if painted, coloured like shot silk or blue as a kingfisher or transparent as glass or black and crumpled with foam, moving ponderously and murderously. … I have known silence: the cold earthy silence at the bottom of a newly dug well; the implacable stony silence of a deep cave; the hot, drugged midday silence when everything is hypnotised and stilled into silence by the eye of the sun; the silence when great music ends.
I have heard summer cicadas cry so that the sound seems stitched into your bones. … I have seen hummingbirds flashing like opals round a tree of scarlet blooms, humming like a top. I have seen flying fish, skittering like quicksilver across the blue waves, drawing silver lines on the surface with their tails. I have seen Spoonbills fling home to roost like a scarlet banner across the sky. I have seen Whales, black as tar, cushioned on a cornflower blue sea, creating a Versailles of fountain with their breath. I have watched butterflies emerge and sit, trembling, while the sun irons their winds smooth. I have watched Tigers, like flames, mating in the long grass. I have been dive-bombed by an angry Raven, black and glossy as the Devil’s hoof. I have lain in water warm as milk, soft as silk, while around me played a host of Dolphins. I have met a thousand animals and seen a thousand wonderful things… but —
All this I did without you. This was my loss.
All this I want to do with you. This will be my gain.
All this I would gladly have forgone for the sake of one minute of your company, for your laugh, your voice, your eyes, hair, lips, body, and above all for your sweet, ever surprising mind which is an enchanting quarry in which it is my privilege to delve.

Letter IV : Heloise to Abelard
Letters of Abelard and Heloise
Context: The heart of man is a labyrinth, whose windings are very difficult to be discovered. The praises you give me are the more dangerous, in regard that I love the person who gives them. The more I desire to please you, the readier am I to believe all the merit you attribute to me. Ah, think rather how to support my weaknesses by wholesome remonstrances! Be rather fearful than confident of my salvation: say our virtue is founded upon weakness, and that those only will be crowned who have fought with the greatest difficulties: but I seek not for that crown which is the reward of victory, I am content to avoid only the danger. It is easier to keep off than to win a battle. There are several degrees in glory, and I am not ambitious of the highest; those I leave to souls of great courage, who have been often victorious. I seek not to conquer, out of fear lest I should be overcome. Happy enough, if I can escape shipwreck, and at last gain the port. Heaven commands me to renounce that fatal passion which unites me to you; but oh! my heart will never be able to consent to it. Adieu.

"Taliesin 1952"
Song at the Year's Turning (1955)

Source: Interpreter of Maladies

Letter of Faraday to Christian Friedrich Schönbein (19 September 1861); see also The Letters of Faraday and Schoenbein 1836-1862 (1899), edited by Georg W. A. Kahlbaum and Francis V. Darbishire, p. 349 http://www.archive.org/details/lettersoffaraday00fararich