Anatomy of the Stone

Never in any circumstances should one indulge in the unscientific illusion that one's own subjective prejudice is a universal and fundamental psychological truth. No true science can spring from this, only a faith whose shadow is intolerance and fanaticism. Contradictory views are necessary for the evolution of any science, only they must not be set up in rigid opposition to each other but should strive for the earliest possible synthesis.

Jung -- The Symbolic Life