Les hommes construisent trop de murs et pas assez de ponts. - Isaac Newton

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

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

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

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

"Errors are not in the art but in the artificers."