The Christian priesthood, finding the doctrines of Christ leveled to every understanding, and too plain to need explanation, saw, in the mysticism of Plato, materials with which they might build up an artificial system which might, from it's indistinctness, admit everlasting controversy, give employment for their order, and introduce it to profit, power and pre-eminence.
Thomas JeffersonTo talk of immaterial existences is to talk of nothings. To say that the human soul, angels, god, are immaterial, is to say they are nothings, or that there is no god, no angels, no soul. I cannot reason otherwise: but I believe I am supported in my creed of materialism by Locke, Tracy, and Stewart. At what age of the Christian church this heresy of immaterialism, this masked atheism, crept in, I do not know. But heresy it certainly is.
Thomas JeffersonFrom the dissensions among Sects themselves arise necessarily a right of choosing and necessity of deliberating to which we will conform. But if we choose for ourselves, we must allow others to choose also, and so reciprocally, this establishes religious liberty.
Thomas JeffersonMay [our Declaration of Independence] be to the world, what I believe it will be (to some parts sooner, to others later, but finally to all), the signal of arousing men to burst the chains under which monkish ignorance and superstition had persuaded them to bind themselves, and to assume the blessings and security of self-government... All eyes are opened, or opening, to the rights of man.
Thomas JeffersonIf you are obliged to neglect any thing, let it be your chemistry. It is the least useful and the least amusing to a country gentleman of all the ordinary branches of science.
Thomas Jefferson