Isaac Newton

“God without dominion, providence, and final causes, is nothing else but Fate and Nature. Blind metaphysical necessity, which is certainly the same always and everywhere, could produce no variety of things. All that diversity of natural things which we find suited to different times and places could arise from nothing but the ideas and will of a Being necessarily existing.”

“eorum omnium actiones in se invicem”

“What goes up must come down.”

“I do not know what I may appear to the world, but 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 all undiscovered before me.”

“Gravity explains the motions of the planets, but it cannot explain who sets the planets in motion.”

“If I have seen further it is by standing on the shoulders of Giants.”

“This principle of nature being very remote from the conceptions of Philosophers, I forbore to describe it in that book, least I should be accounted an extravagant freak and so prejudice my Readers against all those things which were the main designe of the book.”

“Truth is ever to be found in the simplicity, and not in the multiplicity and confusion of things.”

“Lo que sabemos es una gota de agua; lo que ignoramos es un océano.”