Simeon Denis Poisson Professions : Mathematician Born : June 21, 1781 Died : April 25, 1840 Browse All Authors Famous Quotes by Simeon Denis Poisson Life is good for only two things, discovering mathematics and teaching mathematics. Simeon Denis Poisson teaching life science Life is only good for two things, doing mathematics and teaching it. Simeon Denis Poisson teaching life-is two Similar Authors Abram Samoilovitch Besicovitch mathematician Brahmagupta mathematician Augustus De Morgan mathematician Augustin-Louis Cauchy mathematician Atle Selberg mathematician Arthur Cayley mathematician All Authors