Je voulus faire un jet d’eau dans mon jardin; Euler calcula l’effort des roues pour faire monter l’eau dans un bassin, d’où elle devait retomber par des canaux, afin de jaillir à Sans-Souci. Mon moulin a été exécuté géométriquement, et il n’a pu élever une goutte d’eau à cinquante pas du bassin. Vanité des vanités! vanité de la géométrie!
Letter H 7434 from Frederick to Voltaire (1778-01-25)
“I only just hint this to show what use this engine may be put to in working of mills, especially where coals are cheap. I have only this to urge, that water in its fall from any determinate height, has simply a force answerable and equal to the force that raises it.”
Thomas Savery, pp. 25-26 https://books.google.com/books?id=v_-yJ5c5a98C
The Miner's Friend; or, An Engine to Raise Water by Fire, 1702
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Thomas Savery 2
British steam engineer 1650–1715Related quotes
Es gibt nur eine Heilkraft, und das ist die Natur; in Salben und Pillen steckt keine. Höchstens können sie der Heilkraft der Natur einen Wink geben, wo etwas für sie zu tun ist.
Neue Paralipomena
Essays
Source: 1870s, Report of the military services of Gen. David Hunter (1873), pp. 18–19
Alcide al Bivio (1760), scene 5.
Rolling Stone interview (2005)
Context: If I could put it simply, I would say that I believe there's a force of love and logic in the world, a force of love and logic behind the universe. And I believe in the poetic genius of a creator who would choose to express such unfathomable power as a child born in "straw poverty"; i. e., the story of Christ makes sense to me. … As an artist, I see the poetry of it. It's so brilliant. That this scale of creation, and the unfathomable universe, should describe itself in such vulnerability, as a child. That is mind-blowing to me. I guess that would make me a Christian. Although I don't use the label, because it is so very hard to live up to. I feel like I'm the worst example of it, so I just kinda keep my mouth shut. … I try to take time out of every day, in prayer and meditation. I feel as at home in a Catholic cathedral as in a revival tent. I also have enormous respect for my friends who are atheists, most of whom are, and the courage it takes not to believe.
Denis Papin, Letter, as quoted by Robert Stuart Meikleham, A Descriptive History of the Steam Engine (1824)