At his peak, Isaac Newton had one of the most rational minds in human history. His was a brain unlike any other, one that allowed him to develop the fundamental laws of gravity and physics as well as make significant contributions to calculus, the latter of which he did in less time than it takes most people to learn it.

But every exceptional mind is an unusual one, and none were more so than the mind of Isaac Newton. As Newton’s life dragged on, his grip on sanity slowly started to slip, and his interests twisted away from the scientific and into the mystical.

Newton wrote ten million words throughout his life, but most of them had nothing to do with science. The overwhelming majority of the thoughts he put to paper were about alchemy, prophecies, and ancient mysticism—a strange, little-known side to one of the greatest scientific minds in human history.

[Read the full article at Listverse.]