German mathematician and theoretical physicist (1885–1955) and an associate of Einstein at Zurich and Princeton. AQS, in Greek, on an off-white 3.25 x 2 card. Weyl writes: “anthropos aei arithmetisei,” which translates “to man does arithmetic,” or ‘humans are calculators,’ a variation on Gauss’ motto ‘O Theos arithmetisei’ (“God is a calculator” or “God is eternally calculating”). Signed at the conclusion, “Zurich, Switzerland, Sept 17,1952, Hermann Weyl.” In fine condition. RRAuction COA.