Truth is ever to be found in the simplicity, and not in the... - Isaac Newton

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

"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 than others, it is by standing upon the shoulders of giants."

"What goes up must come down."