Complex sentence: Extropianism, also referred to as extropy, is the original philosophy of transhumanism, and is characterized by the set of principles defined by Dr. Max More in "The Principles of Extropy".
Split into simpler sentences: Extropianism, also referred to as extropy, is the original philosophy of transhumanism. The philosophy of extropy characterized by a set of principles regarding extropy, defined by Dr. Max More in "The Principles of Extropy".