Worlds of Truth: A Philosophy of Knowledge explicates and builds upon a half century of philosophical work by the noted philosopher Israel Scheffler.

Propounds a new doctrine of plurealism which maintains the existence of multiple real worlds
Offers a defense of absolute truth, which denies certainty and eschews absolutism, and defends systematic relativity, objectivity, and fallibilism
Emphasizes a wide range of pragmatic interests: epistemology and scientific development, cognition and emotion, science and ethics, ritual and culture, and art and science