From the last paragraph of Newton’s Principia Mathematica:
” And now we might add something concerning a certain most subtle spirit which pervades and lies hid in all gross bodies; by the force and action of which spirit the particles of bodies attract one another at near distances, and cohere, if contiguous; and electric bodies operate to greater distances, as well repelling as attracting the neighboring corpuscles; and light is emitted, reflected, refracted, inflected, and heats bodies; and all sensation is excited, and the members of animal bodies move at the command of the will, namely, by the vibrations of this spirit, mutually propagated along the solid filaments of the nerves, from the outward organs of sense to the brain, and from the brain into the muscles. But these are things that cannot be explained in few words, nor are we furnished with that sufficiency of experiments which is required to an accurate determination and demonstration of the laws by which this electric and elastic spirit operates.”
Note the focus on sense organs and spirit a la the definition of Ayur.
Doing some research, I found that there is considerable controversy over this issue! But to me it seems to be fueled by preconceptions and emotions.
Yes, it turns out that he did study the “humours” and alchemy, what in Sanskrit is the inestimable rasa shastra.
All I am saying is that I hear the voice of a fellow Ayurvedic Astrologer in the top paragraph.