The Constitution of Man is the classical exposition of
phrenology, written by
George Combe and published in 1828. The
Constitution bridged the early anatomical science of the nineteenth century with
evolutionary concepts. Its central argument is that the laws of the physical universe are as active in the human brain - and therefore in the
mind (because of its role as a process of the brain) - as in the external, "physical" universe. Human behaviour is, therefore, usefully comprehended in neurological - rather than religious or philosophical - terms.