In the preface to his 1953 book "The Captive Mind", Miłosz wrote, "I do not regret those years in Warsaw, which was, I believe, the most agonizing spot in the whole of terrorized Europe. Had I then chosen emigration, my life would certainly have followed a very different course. But my knowledge of the crimes which Europe has witnessed in the twentieth century would be less direct, less concrete than it is". Immediately after the war, Miłosz published his fourth poetry collection, "Rescue"; it focused on his wartime experiences and contains some of his most critically praised work, including the 20-poem cycle "The World," composed like a primer for naïve schoolchildren, and the cycle "Voices of Poor People". The volume also contains some of his most frequently anthologized poems, including "A Song on the End of the World", "Campo Dei Fiori", and "A Poor Christian Looks at the Ghetto".