"The religion which the primitive teaching of the early few apostles most resembled — a religion preached by Jesus himself — is the elder of... Buddhism. The latter as taught in its primitive purity, and carried to perfection by the last of the Buddhas, Gautama, based its moral ethics on three fundamental principles. It alleged that 1, every thing existing, exists from natural causes; 2, that virtue brings its own reward, and vice and sin their own punishment; and, 3, that the state of man in this world is probationary... However puzzling the subsequent theological tenets; however seemingly incomprehensible the metaphysical abstractions which have convulsed the theology of every one of the great religions of mankind as soon as it was placed on a sure footing, the above is found to be the essence of every religious philosophy, with the exception of later Christianity. It was that of Zoroaster, of Pythagoras, of Plato, of Jesus, and even of Moses, albeit the teachings of the Jewish law-giver have been so piously tampered with."
January 1, 1970
https://en.wikiquote.org/wiki/Jesus