an admirable Crichton
an admirable Crichtona person who excels in all kinds of studies and pursuits, or who is noted for supreme competence.
This expression originally referred to James Crichton of Clunie ( 1560–85 ?), a Scottish nobleman renowned for his intellectual and physical prowess. In J. M. Barrie 's play The Admirable Crichton ( 1902 ), the eponymous hero is a butler who takes charge when his master's family is shipwrecked on a desert island.