Albert Einstein comwosed tributes to manv individuals but to only three men he hadnever met-~ohannei~e~ler

(d.
1630), who formulated the laws of planetary motion; Isaac Newton (d. 1727), who derived those laws from general dynamic principles and a law of universal gravitation; and James Clerk Maxwell

(d.
1879), who, by a mathematical formulation of Michael Fara- day's concept of a physical state pervading all matter and space (a "field"), obtained the laws of electromagnetism. For Ei...