   One of the most distinctive features of Ethical Intuitionism is its epistemology. All of the classic intuitionists maintained that basic moral propositions are self-evident—that is, evident in and of themselves—and so can be known without the need of any argument. Price distinguishes intuition from two other grounds of knowledge—namely, immediate consciousness or feeling on the one hand, and argumentation, on the other. Argumentation, or deduction, is knowledge that is ultimately derived from what is immediately apprehended, either by sensation or by the understanding. Immediate consciousness, or feeling, is the mind’s awareness of its own existence and mental states (Price, 1758/1969, 159). It shares immediacy with intuition, but unlike intuition does not have as its object a self-evident proposition. Such immediate self-consciousness is immediate apprehension by sensation. Intuition is immediate apprehension by the understanding. It is the way that we apprehend self-evident truths, general and abstract ideas, “and anything else we may discover, without making any use of any process of reasoning” (1758/1969, 159).