A scientific cosmology can contain no residue of the idea that the world was constructed by some being who is not a part of it … As there can, by definition, be nothing outside the universe, a scientific cosmology must be based on a conception that the universe made itself. This is possible because, since Darwin, we know that structure and complexity can be self-organized … without any need for a maker outside of the system.
as quoted in Huberman, The Quotable Atheist, p. 282