In the tenth and following Urantia Foundation printings, "life-long" was changed to "lifelong." As both forms are correct, and as both forms are found elsewhere in the revelation, this change seems needless.

Original Paragraph:

^{P928:7, 83:7.6} The real test of marriage, all down through the ages, has been that continuous intimacy which is inescapable in all family life. Two pampered and spoiled youths, educated to expect every indulgence and full gratification of vanity and ego, can hardly hope to make a great success of marriage and home building -- a life-long partnership of self-effacement, compromise, devotion, and unselfish dedication to child culture.