“There were three ingredients in the scientific outlook of the eighteenth centur

— “There were three ingredients in the scientific outlook of the eighteenth century that were specially important:
(1) Statements of fact should be based on observation, not on unsupported authority.
(2) The inanimate world is a self-acting, self-perpetuating system, in which all changes conform to natural laws.
(3) The earth is not the center of the universe, and probably Man is not its purpose (if any); moreover, “purpose” is a concept which is scientifically useless.”– Bertrand Russell