“‘Heresy,’ by the way, simply means ‘choice.’ It came to mean ‘thoughtcrime,’ implying it was blasphemy to presume to choose your own belief”*…
Largely forgotten today, the 17th-century Flemish alchemist Francis van Helmont influenced and was friends with the likes of Locke, Boyle, and Leibniz. While imprisoned by the Inquisition, in between torture sessions, he wrote his Alphabet of Nature on the idea of a universal “natural” language.
The full– and fascinating– story at “Francis van Helmont and the Alphabet of Nature.”
As we fumble for fundamentals, we might send apostate birthday greetings to Govaert Wendelen (Latinized Godefridus Wendelinus, or sometimes Vendelinus); he was born on this date in 1580. A clergyman and astronomer, he was– in conflict with the Church’s teachings at the time– a vigorous proponent of the Copernican theory that the planets orbit around the sun. Wendelen is regarded as first to formulate a law for the variation of the obliquity of the ecliptic (for which Newton cited him in his Principia). The crater Vendelinus on the Moon is named for him.