Live simply and prudently, with self-control and moderation. Seek simple pleasures, those that satisfy natural and necessary desires, chief of which are food, drink, clothing, shelter, friendship and love. The words of Epicurus.

Very similar to the basic teachings of Christianity, really. But what would Jesus have made of the institutions that have flourished in his name? Would he have supported the supernaturalism and obscure fights over doctrine? Would he have approved of the buildings, the priesthood, the vestments, the sectarianism, the intolerance in some quarters, the abuses and so on. I doubt it.