Quote by Isaac Newton
"You must be able to grow and be continually improving yourself, not resting on past laurels."
More from Isaac Newton
"If I have seen further, it is by standing on the shoulders of giants."
"The greatest force in the universe is not gravity, but human potential."
"I can calculate the motion of heavenly bodies, but not the madness of people."
"Nature and nature's laws lay hid in night; God said, Let Newton be! and all was light."