“God's most candid critics are those of his children whom he has made poets.”
Preface to Oxford Poetry for 1914 http://books.google.com/books?id=rRcGYxSyobsC&q=%22God's+most+candid+critics+are+those+of+his+children+whom+he+has+made+poets%22&pg=PAvii#v=onepage and 1914–1916 http://books.google.com/books?id=W5iRAAAAIAAJ&q=%22God's+most+candid+critics+are+those+of+his+children+whom+he+has+made+poets%22&pg=PA5#v=onepage.