Wallis Quotes

“No old Men (excepting Dr. Wallis) love Mathematicks.”
― Isaac Newton

“Foreshadowings of the principles and even of the language of [the infinitesimal] calculus can be found in the writings of Napier, Kepler, Cavalieri, Fermat, Wallis, and Barrow. It was Newton's good luck to come at a time when everything was ripe for the discovery, and his ability enabled him to construct almost at once a complete calculus.”
― W.W. Rouse Ball, A Short Account of the History of Mathematics