William Blake (1757–1827). The Poetical Works. 1908.
On Friends and FoesWas I angry with Hayley who usd me so ill
Or can I be angry with Felpham’s old mill?
Or angry with Flaxman, or Cromek, or Stothard,
Or poor Schiavonetti, whom they to death bother’d?
Or angry with Macklin, or Boydell, or Bowyer,
Because they did not say ‘O what a beau ye are’?
At a friend’s errors anger show,
Mirth at the errors of a foe.