“ Physicists believe that the Gaussian law has been proved in mathematics while mathematicians think that it was experimentally established in physics. Henri Poincare
“ Pure analysis puts at our disposal a multitude of procedures whose infallibility it guarantees; it opens to us a thousand different ways on which we can embark in all confidence; we are assured of mee… Henri Poincare
“ The philosophers make still another objection: "What you gain in rigour," they say, "you lose in objectivity. You can rise toward your logical ideal only by cutting the bonds which attach you to reali… Henri Poincare
