Surgeons must be very careful,
When they take the knife!,
Underneath their fine incisions,
Stirs the Culprit --Life!
Source: The Complete Poems of Emily Dickinson, no. 108, ed. Thomas H. Johnson, 1955.
-- Emily Dickinson, (Dec 10 1830-1886), US poet; She was a reclusive stylist who combined spare lyricism with unorthodox diction.