Rufinus of Aquileia in his free translation of Eusebius' "Historia Ecclesiastica"

Almost as good is:
"Geometry is logic and logic is the battlefield of adulthood."
(Colonel Lyle C. Rumford in Columbo, season 4, episode 3: "By Dawn's Early Light")

And another one:
"What was worse was that Tom clearly had a gift for figures. But instead of harnessing that practically by going in for accountancy, he'd chosen the airy-fairy world of pure mathematics. As if that was the first step on the road to prosperity and decency."
Val McDermid, "The Distant Echo"