“First, however, I must deal with the matter of Jesus, the so-called savior, who not long ago taught new doctrines and was thought to be a son of God. This savior, I shall attempt to show, deceived many and caused them to accept a form of belief harmful to the well-being of mankind. Taking its root in the lower classes, the religion continues to spread among the vulgar: nay, one can even say it spreads because of its vulgarity and the illiteracy of its adherents. And while there are a few moderate, reasonable, and intelligent people who interpret its beliefs allegorically, yet it thrives in its purer form among the ignorant.””
Quotes by Celsus
“…evils are not caused by God; rather, that they are a part of the nature of matter and of mankind; that the period of mortal life is the same from beginning to end, and that because things happen in cycles, what is happening now”
“If, these people worshiped one God alone, and no other, they would probably have some valid argument against the worship of others. But they pay excessive reverence to one who has but lately appeared among men, and they think it no offence against God if they worship also His servant.””
“All their religious conceptions are outward and material. They say that God is of a bodily nature, and has a body in form like that of a man. Material, too, is their conception of eternal life. Ask to what place they are departing, or what hope they have, and they answer”
“The wisest of nations, cities, and men in every age have held by certain general principles of thought and action : to this ancient tradition the Egyptians, Assyrians, Persians and Indians, Samothracians and Druids, alike adhere ; but the Jews and Moses have no part nor lot in it. I pass by those who explain away the Mosaic records by plausible allegorising. The Mosaic account in regard to the age of the world is false: the flood being in the time of Deucalion was comparatively recent. Neither the teaching nor the institutions of Moses have any claim to originality. He appropriated doctrines which he had heard from men and nations of repute for wisdom. He borrowed the rite of circumcision from the Egyptians. He deluded goatherds and shepherds into the belief that there was one God”
CelsusA Roman encyclopaedist, in particular of medicine (<a href=https://en.wikipedia.org/wiki/Aulus_Cornelius_Celsus>Wikipedia</a>).