Most systems of metaphysics being really systems of speculation, often involving much logical hair-splitting, it must be reiterated that the system of "metaphysics of truth" alone seeks to direct the movement of thinking along the lines which it must take if it is to attain truth and not, like most other systems, along the lines which it wishes to take. The truth of a metaphysical system must be guaranteed by the mystic experience out of which it is born. No other assurance can offer the same certitude and the same satisfaction in the end. Whereas every man may hold whatever metaphysical opinion pleases him, this alone holds him to face up to the inescapable necessities imposed by the severe facts brought to light by the highest mystic experience. This alone is impersonally constructed in conformity with the hidden pattern of life, whereas speculative metaphysics is constructed in conformity with the limited experience and personal bias of its builders. It may tersely be said that metaphysics is based on logic whereas the "metaphysics of truth" is based on life.
-- Perspectives > Chapter 7: The Intellect > # 32
