Phrenology's fundamental assumptions remained constant throughout the history of the movement. They were succinctly stated by as consisting of the folowing three "fundamental principles': (3) That the size of the cerebral organ is, ceteris paribus, an index of power or energy of function.
Faculty psychology is getting to be respectable again after centuries of hanging around with phrenologists and other dubious types. By faculty psychology I mean, roughly, the view that many fundamentally different kinds of psychological mechanisms must be postulated in order to explain the facts of mental life.
The origin of all science is in the desire to know causes; and the origin of all false science and imposture is in the desire to accept false causes rather than none; or, which is the same thing, in the unwillingness to acknowledge our own ignorance.
'Tis strange how like a very dunce,The faculties throw up like mole hills.