To try to reform all the power structures at once would leave us with no power structure to use in our project. In any case, we will be able to see that absolute moral renewal could be attempted only by an absolute power and that a tyrannous force such as this must destroy the whole moral life of man, not renew it.
And the actual achievements of biology are explanations in terms of mechanisms founded on physics and chemistry, which is not the same thing as explanations in terms of physics and chemistry.
Admittedly, the body of scientists, as a whole, does uphold the authority of science over the lay public. It controls thereby also the process by which young men are trained to become members of the scientific profession.
Admittedly, scientific authority is not distributed evenly throughout the body of scientists; some distinguished members of the profession predominate over others of a more junior standing.