Prov. Be aware of your own limitations; know what you are capable of doing. (This was the motto inscribed on the temple of Apollo at Delphi.) The motto of the ballet corps was "Know thyself"; every dancer was expected to know how far she could stretch, and not hurt herself by trying to exceed her limits. "Know thyself," the high school guidance counselor admonished us, "and try to find a career that makes the most of your abilities."