From this radical distinction of Christ's teaching as compared with previous teachings, which are based on the social conception of life, there results the difference between the social and the Christian commandments. The social commandments are for the most part positive, prescribing certain acts, justifying men, giving them righteousness. But the Christian commandments (the commandment of love is not a commandment in the strict sense of the word, but an expression of the very essence of the teaching)--the five commandments of the Sermon on the Mount--are all negative, and they all show only what men may not do at a certain stage of human development. These commandments are, as it were, signals on the infinite road to perfection, toward which humanity walks, signals of that stage of perfection which is possible at a given period of the development of humanity. In the Sermon on the Mount Christ has expressed the eternal ideal toward which it is proper for men to tend, and that degree of its attainment which can be reached even in our time. The ideal consists in having no ill-will against any one, in calling forth no ill-will, in loving all; but the commandment, below which, in the attainment of this ideal, it is absolutely possible not to descend, consists in not offending any one with a word. And this forms the first commandment. The ideal is complete chastity, even in thought; the commandment which points out the degree of attainment, below which, in the attainment of this ideal, it is absolutely possible not to descend, is the purity of the marital life, the abstaining from fornication. And this forms the second commandment. The ideal is not to care for the future, to live only in the present; the commandment which points out the degree of the attainment, below which it is absolutely possible not to descend is not to swear, not to promise anything to men. And this is the third commandment. The ideal is never, under any condition, to make use of violence; the commandment which points out the degree below which it is absolutely possible not to descend is not to repay evil with evil, but to suffer insult, to give up one's cloak. And this is the fourth commandment. The ideal is to love our enemies, who hate us; the commandment which points out the degree of the attainment, below which it is possible not to descend, is to do no evil to our enemies, to speak well of them, to make no distinction between them and our fellow citizens. All these commandments are indications of what we are fully able not to do on the path of striving after perfection, of what we ought to work over now, of what we must by degrees transfer into the sphere of habit, into the sphere of the unconscious. But these commandments fail to form a teaching, and do not exhaust it, and form only one of the endless steps in the approximation toward perfection.