A Quote by Jules Henri Poincaré on debate, disease, generations, mathematics, and theory

Later generations will regard Mengenlehre (set theory) as a disease from which one has recovered. [Whether or not he actually said this is a matter of debate amongst historians of mathematics.]

Jules Henri Poincare (1854 - 1912)

Source: The Mathematical Intelligencer, vol 13, no. 1, Winter 1991.

Contributed by: Zaady