“Suppose a person entering a house were to feel heat on the porch, and going further, were to feel the heat increasing, the more they penetrated within. Doubtless, such a person would believe there was a fire in the house, even though they did not see the fire that must be causing all this heat. A similar thing will happen to anyone who considers this world in detail: one will observe that all things are arranged according to their degrees of beauty and excellence, and that the nearer they are to God, the more beautiful and better they are.”
Sermon on the Apostles' Creed, 13-14
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Thomas Aquinas 104
Italian Dominican scholastic philosopher of the Roman Catho… 1225–1274Related quotes

“And yet it is hard to believe that anything
in nature could stand revealed as solid matter.
The lightning of heaven goes through the walls of houses,
like shouts and speech; iron glows white in fire;
red-hot rocks are shattered by savage steam;
hard gold is softened and melted down by heat;
chilly brass, defeated by heat, turns liquid;
heat seeps through silver, so does piercing cold;
by custom raising the cup, we feel them both
as water is poured in, drop by drop, above.”
Etsi difficiile esse videtur credere quicquam
in rebus solido reperiri corpore posse.
transit enim fulmen caeli per saepta domorum,
clamor ut ad voces; flamen candescit in igni
dissiliuntque ferre ferventi saxa vapore.
tum labefactatus rigor auri solvitur aestu;
tum glacies aeris flamma devicta liquescit;
permanat calor argentum penetraleque frigus
quando utrumque manu retinentes pocula rite
sensimus infuso lympharum rore superne.
Book I, lines 487–496 (Frank O. Copley)
De Rerum Natura (On the Nature of Things)

Meteorological Observations and Essays: Mit Tabellen, 1834 p. 18

“Bright-flaming, heat-full fire,
The source of motion.”
First Week, Second Day. Compare: "Heat considered as a Mode of Motion" (title of a treatise, 1863), John Tyndall.
La Semaine; ou, Création du monde (1578)

Interview with Hugh Sidey, according to Kennedy Library https://www.jfklibrary.org/JFK/JFK-in-History/Jacqueline-Kennedy-in-the-White-House.aspx (1 September 1961)