The Revolutionist's Handbook and Pocket Companion by George Bernard Shaw

If there were no God, said the eighteenth century Deist, it would be necessary to invent Him. Now this XVIII century god was deus ex machina, the god who helped those who could not help themselves, the god of the lazy and incapable. The nineteenth century decided that there is indeed no such god; and now Man must take in hand all the work that he used to shirk with an idle prayer. He must, in effect, change himself into the political Providence which he formerly conceived as god; and such change is not only possible, but the only sort of change that is real.

The mere transfiguration of institutions, as from military and priestly dominance to commercial and scientific dominance, from commercial dominance to proletarian democracy, from slavery to serfdom, from serfdom to capitalism, from monarchy to republicanism, from polytheism to monotheism, from monotheism to atheism, from atheism to pantheistic humanitarianism, from general illiteracy to general literacy, from romance to realism, from realism to mysticism, from metaphysics to physics, are all but changes from Tweedledum to Tweedledee: plus ca change, plus c'est la meme chose. But the changes from the crab apple to the pippin, from the wolf and fox to the house dog, from the charger of Henry V to the brewer's draught horse and the race-horse, are real; for here Man has played the god, subduing Nature to his intention, and ennobling or debasing Life for a set purpose. And what can be done with a wolf can be done with a man.