He discovered that if the mathematics he needed didn't exist yet, then he could invent it.
No he DIDN'T
Yes!
isaac newton discovered gravity and the telescope
Sir Isaac Newton.
Isaac Newton made many discoveries in science, but did not discover any new elements.
It was Sir Isaac Newton (1642-1727), English mathematician and physicist, who set down the laws of motion.
He did better than that.He invented it.
gravity by a apple,
Sir Isaac Newton.
Sir Isaac Newton
In mathematics, he was the original discoverer of the infinitesimal calculus.
Sir Isaac Newton