Liberty, according to my metaphysics, is an intellectual quality, an attribute that belongs not to fate nor chance. Neither possesses it, neither is capable of it. There is nothing moral or immoral in the idea of it. The definition of it is a self-determining power in an intellectual agent. It implies thought and choice and power; it can elect between objects, indifferent in point of morality, neither morally good nor morally evil.

The human understanding is a revelation from its maker, which can never be disputed or doubted. There can be no scepticism, Pyrrhonism, or incredulity or infidelity here. No prophecies, no miracles are necessary to prove this celestical communication. This revelation has made it certain that two and one make three, and that one is not three nor can three be one. We can never be so certain of any prophecy, or the fulfilment of any prophecy, or of any miracle, or the design of any miracle, as we are from the revelation of nature, that is, nature's God, that two and two are equal to four.

Government has no Right to hurt a hair of the head of an Atheist, for his Opinions. Let him have a care of his Practices.

The Hebrews have done more to civilize men than any other nation: The doctrine of a supreme, intelligent sovereign of the universe, I believe to be the great essential principle of all morality, and consequently of all civilization.

The appearance of religion only on Sunday proves that it is only an appearance.

Religion and virtue are the only foundations, not of republicanism and of all free government, but of social felicity under all government and in all the combinations of human society.

Negro Slavery is an evil of Colossal magnitude. I am therefore utterly averse to the admission of Slavery into the Missouri Territory, and heartily wish that every Constitutional measure may be adopted for the preservation of it.