 Jefferson finds the notion of three deities in one inscrutable, and therefore physically impossible. Here he falls back on his naturalism. He allows nothing inconsistent with the laws of nature, gleaned through experience. The sort of Unitarianism Jefferson promotes is not a religious sect, but instead a manner of approaching religion. Of his Unitarianism, Jefferson asserts to John Adams (22 Aug. 1813), “We should all then, like the Quakers, live without an order of priests, moralize for ourselves, follow the oracle of conscience, and say nothing about what no man can understand, nor therefore believe.” To Dr. Thomas Cooper (2 Nov. 1822), Jefferson contrasts Unitarians with sectarian preachers, so Unitarians can be grasped as persons living fully in accordance with the dictates of their moral sense faculty. To Benjamin Waterhouse (8 Jan. 1825), Jefferson states that Unitarianism is “primitive Christianity, in all the simplicity in which it came from the lips of Jesus.” Such letters show plainly that monotheism, incomplexity, and non-sectarianism are dependent issues. Jefferson made purchase of monotheism because it and benevolence were key tenets of Jesus’ uncorrupted teachings. Those two tenets, letters indicate, were the framework of his Unitarianism, or of any right religion.