The Moral Sentiment, so striking in its character, has by some been supposed the foundation of all morality, but in point of fact it is itself constituted by these various judgments. Now that they are known to stand as its elements, he goes on to subject each to a stricter analysis, taking first the judgment of _good_ and _evil_, which is at the bottom of all the rest. It lies in the original constitution of human nature, being simple and indecomposable, like the judgment of the True and the Beautiful. It is absolute, and cannot be withheld in presence of certain acts; but it only declares, and does not constitute, good and evil, these being real and independent qualities of actions. Applied at first to special cases, the judgment of good gives birth to general principles that become rules for judging other actions. Like other sciences, morality has its axioms, justly called moral truths; if it is good to keep an oath, it is also true, the oath being made with no other purpose than to be kept. Faithful guarding as much belongs to the idea of a deposit, as the equality between its three angles and two right angles to the idea of a triangle. By no caprice or effort of will can a moral verity be made in the smallest degree other than it is. But, he goes on, a moral verity is not simply to be believed; it must also be practised, and this is _obligation_, the second of the elements of moral sentiment. Obligation, like moral truth, on which it rests, is absolute, immutable, universal. Kant even went so far as to make it the principle of our morality; but this was subjectivizing good, as he had subjectivized truth. Before there is an obligation to act, there must be an intrinsic goodness in the action; the real first truth of morality is justics, _i.e._, the essential distinction of good and evil. It is justice, therefore, and not duty, that strictly deserves the name of a principle. The next element is _liberty_. Obligation implies the faculty of resisting desire, passion, &c., else there would be a contradiction in human nature. But the truest proof of liberty is to be sought in the constant testimony of consciousness, that, in wishing this or that, I am equally able to will the contrary. He distinguishes between the power of willing and the power of executing; also between will and desire, or passion. In the conflict between will and the tyranny of desire lies liberty; and the aim of the conflict is the fulfilment of duty. For the will is never so free, never so much itself, as when yielding to the law of duty. Persons are distinguished from Things in having responsibility, dignity, intrinsic value. Because there is in me a being worthy of respect, I am bound in duty to respect myself, and I have the _right_ to be respected by you. My duty (he means, of course, what I owe to self) is the exact measure of my right. The character of being a _person_ is inviolable, is the foundation of property, is inalienable by self or others, and so forth.