"The idea of the preexistence of the soul. Hinduism and Buddhism have it for their foundation; the educated classes among the ancient Egyptians believed in it; the ancient Persians arrived at it; the Greek philosophers made it the corner-stone of their philosophy; the Pharisees among the Hebrews accepted it; and the Sufis among the Mohammedans almost universally acknowledged its truth." - Swami Vivekananda