Georges Cuvier, ironically a colleague of Lamarcks at the Natural History Museum was his biggest opponent. Cuvier stated "These evolutionary principles once admitted, it will easily be perceived that nothing is wanting but time and circumstances to enable a monad or a polypus gradually and indifferently to transform themselves into a frog, a stork, or an elephant....A system established on such foundations may amuse the imagination of a poet.” The criticism of Lamarck was revolved around two major points: first, was the idea that Lamarck's work derived from over imaginative and unrealistic speculation-it was not scientific progress. Second, was the relationship between the mind and the body-Cuvier felt Lamarck was mischaracterizing the relationship