[4] From these few things it is plain that good is nothing apart from truth, nor truth anything apart from good. But if good together with truth and truth together with good are something, evil with falsity and falsity with evil are not, for the latter are opposite to the former and the opposition destroys--that is, destroys the something. But of this in what follows. 12. Marriage of good and truth may, however, be found either in a cause or from the cause in an effect. In a cause the marriage of good and truth is one of will and understanding, or of love and wisdom. Such a marriage is in all that a man wills and thinks and in all his ensuing determinations and purposes. This marriage enters into and in fact produces the effect. But in producing the effect, good and truth seem distinct, for then the simultaneous turns successive. When, for example, a man wills and thinks about food, clothing, shelter, business or employment, or about his relationship to others, first he wills and thinks or comes to his conclusions and intentions all at the same time; but when these are determined to effects, truth follows on good, though in will and thought they continue to make one. In the effects the uses pertain to love or good, and the ways of performing the uses pertain to understanding or truth. Anyone can confirm these general truths by particular instances provided he perceives what is referable respectively to good of love and to truth of wisdom, and also how differently it is referable in cause and in effect. 13. We have said often that love constitutes man's life. This does not mean, however, love separate from wisdom or good from truth in the cause, for love separate or good separate is not an actuality. The love which makes man's inmost life--the life he has from the Lord--is therefore love and wisdom together; neither is the love which makes his life as a recipient being separate in the cause, but only in the effect. For love cannot be understood except from its quality, which is wisdom; and the quality or wisdom can exist only from its own _esse,_ which is love; thence it is that they are one; it is the same with good and truth. Since truth is from good as wisdom is from love, it is the two taken together that are called good or love. For love has wisdom for its form, and good for its form truth, and form is the source, and the one source, of quality. It is plain from all this that good is good only so far as it has become one with its truth, and truth truth only so far as it has become one with its good.