- Philo (ca. 25 B.C. to A.D. 50) : Philo refers to a Neoplatonist who combined Jewish theology with Plato's philosophy. Philo differentiated between the lower Self (the body) and a spiritual self, which is made in God's imag e. The body is the source of all evil; therefore, for the spiritual self to develop fully, one should avoid or minimize sensory experience.