metaphysic

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.

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.

What we need as a metaphysic and what the logical realists are at least glimpsing, is the principle of contradiction.