Complex sentence: Encyclopedia of Philosophy, Volume 3,1967, Macmillan, Inc. It is sometimes referred to as "theory of knowledge" and investigates what knowledge is, how it can be acquired, and the extent to which any given subject or entity may be known.
Split into simpler sentences: Encyclopedia of Philosophy, Volume 3,1967, Macmillan, Inc. It is sometimes referred to as "theory of knowledge". It questions what knowledge is, how it can be acquired, and the extent to which any given subject or entity can be known.