I have tried to show how religion, the backbone of civilisation, hardens into a Church that is unacceptable to Outsiders, and the Outsiders — the men who strive to become visionaries — become the Rebels. In our case, the scientific progress that has brought us closer than ever before to conquering the problems of civilisation, has also robbed us of spiritual drive; and the Outsider is doubly a rebel: a rebel against the Established Church, a rebel against the unestablished church of materialism. Yet for all this, he is the real spiritual heir of the prophets, of Jesus and St. Peter, of St. Augustine and Peter Waldo. The purest religion of any age lies in the hands of its spiritual rebels. The twentieth century is no exception.

p. 320 - Religion and the Rebel (1957)