If I have ever made any valuable discoveries, it has been owing more to patient attention, than any other talent.
Source: In Isaac Asimov's Book of Science and Nature Quotations, ed. Jason Shulman & Isaac Asimov, 1988.
-- Isaac Newton, (Dec 25 1642-1727), English mathematician, philosopher; He was first to describe the laws of motion and universal gravitation; also invented the reflecting telescope, 1668.