Leonard Mlodinow in Nautilus (illustration by Ralph Steadman):
Describing his life, shortly before his death, Newton put his contributions this way: “I don’t know what I may seem to the world, but, as to myself, I seem to have been only like a boy playing on the sea shore, and diverting myself in now and then finding a smoother pebble or a prettier shell than ordinary, whilst the great ocean of truth lay undiscovered before me.”
One thing Newton never did do, actually, was play at the seashore. In fact, though he profited greatly from occasional interaction with scientists elsewhere in Britain and on the Continent—often by mail—he never left the vicinity of the small triangle connecting his birthplace, Woolsthorpe, his university, Cambridge, and his capital city, London. Nor did he seem to “play” in any sense of the word that most of us use. Newton’s life did not include many friends, or family he felt close to, or even a single lover, for, at least until his later years, getting Newton to socialize was something like convincing cats to gather for a game of Scrabble. Perhaps most telling was a remark by a distant relative, Humphrey Newton, who served as his assistant for five years: he saw Newton laugh only once—when someone asked him why anyone would want to study Euclid.
Newton had a purely disinterested passion for understanding the world, not a drive to improve it to benefit humankind. He achieved much fame in his lifetime, but had no one to share it with. He achieved intellectual triumph, but never love. He received the highest of accolades and honors, but spent much of his time in intellectual quarrel. It would be nice to be able to say that this giant of intellect was an empathetic, agreeable man, but if he had any such tendencies he did a good job suppressing them and coming off as an arrogant misanthrope. He was the kind of man who, if you said it was a gray day, would say, “no, actually the sky is blue.” Even more annoying, he was the kind who could prove it. Physicist Richard Feynman voiced the feelings of many a self-absorbed scientist when he wrote a book titled, What Do You Care What Other People Think? Newton never wrote a memoir, but if he had, he probably would have called it I Hope I Really Pissed You Off, or maybe, Don’t Bother Me, You Ass.
Today we all reason like Newtonians. We speak of the force of a person’s character, and the acceleration of the spread of a disease. We talk of physical and even mental inertia, and the momentum of a sports team. To think in such terms would have been unheard of before Newton; not to think in such terms is unheard of today. Even those who know nothing of Newton’s laws have had their psyches steeped in his ideas. And so to study the work of Newton is to study our own roots.