Respectfully Quoted: A Dictionary of Quotations. 1989.
W. B. Yeats (18651939)
Turning and turning in the widening gyre The falcon cannot hear the falconer; Things fall apart; the centre cannot hold; Mere anarchy is loosed upon the world, The blood-dimmed tide is loosed, and everywhere The ceremony of innocence is drowned; The best lack all conviction, while the worst Are full of passionate intensity.
WILLIAM BUTLER YEATS, The Second Coming, lines 18, The Variorum Edition of the Poems of W. B. Yeats, ed. Peter Allt and Russell K. Alspach, pp. 4012 (1957).