With reference to general Philosophy or Metaphysic proper, psychology may be viewed as a kind of common ground whereon thinkers of widely different schools may meet.
1775, w:Samuel Horsley|Samuel Horsley, "An Abridged State of the Weather at London in the Year 1774," Philosophical Transactions (1683-1775), vol. 65, p. 182:
The uncertain conclusions of an ill-conducted analogy, and a false metaphysic, were mixed with a few simple precepts derived from observation, which probably made the whole of the science of prognostication in its earliest and purest state.