"The scientific explanation for human origins does not admit a supreme being as the creator of life and humans. This is not a rejection or denial of God, merely an acceptance of the limitations of science. By its very nature, science is unable to deal with a supernatural being. Science deals only with nature, with the materials, processes, and life forms of the natural world. God is, by definition, beyond the investigative powers of science."
- George D. Brown, Jr., "Human Evolution"