“God made the integers, all the rest is the work of man.”
Leopold Kronecker (1823–1891) German mathematician who worked on number theory and algebra (1823–1891)
Die ganzen Zahlen hat der liebe Gott gemacht, alles andere ist Menschenwerk.
Quoted in "Philosophies of Mathematics" - Page 13 - by Alexander George, Daniel J. Velleman - Philosophy - 2002