Richard P. Feynman
Profession: Physicist. Born 1918, Brooklyn, New York.
Died 1988, Los Angeles, California.
"We could, of course, use any notation we want; do not laugh at notations; invent them, they are powerful. In fact, mathematics is, to a large extent, invention of better notations."
(Source: The Feynman Lectures on Physics, Addison-Wesley, Chapter 17)