Euler - The unsurpassed master of analytic invention.
source: - Richard Courant (1948). “Lectures on the theory of functions”
Topics: Invention, Masters, Mathematician, Analytics, Euler

Topics: Struggle, Expression, Perfection, Contemplative
source: - "Mathematics in the Modern World". Scientific American, Vol 211, (p. 42), September 1964.
Topics: Motivation, Essence, Ideas, Urgent
source: - "What is Mathematics?" by Richard Courant, (p. xix), 1941.
Topics: Philosophy, Answers, Mathematics
Topics: Reality, Men, Two, Oversimplification
source: - Richard Courant, Herbert Robbins (1979). “What is mathematics?: an elementary approach to ideas and methods”, Oxford University Press, USA
Topics: Statistics, Systematic, Principles
Topics: Struggle, Years, Intellectual, Twenty Five