Errors are not in the art but in the artificers. - Isaac Newton

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

"If I have seen further than others, it is by standing upon the shoulders of giants."

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

"My powers are ordinary. Only my application brings me success."

"I can calculate the motion of heavenly bodies but not the madness of people."