Moravia once remarked that the most important facts of his life had been his illness, a tubercular infection of the bones that confined him to a bed for five years and Fascism, because they both caused him to suffer and do things he otherwise would not have done. "It is what we are forced to do that forms our character, not what we do of our own free will." Moravia was an atheist. His writing was marked by its factual, cold, precise style, often depicting the malaise of the "bourgeoisie". It was rooted in the tradition of nineteenth-century narrative, underpinned by high social and cultural awareness. Moravia believed that writers must, if they were to represent reality, "assume a moral position, a clearly conceived political, social, and philosophical attitude" but also that, ultimately, "A writer survives in spite of his beliefs". Between 1959 and 1962 Moravia was president of PEN International, the worldwide association of writers.