The mathematics of marriage state that 1 +1 = 2, yet 2 - 1 = 0. (movingpastdivorce.com)
Through Marriage the State gives added incentive and some further rights to couples. (religion.blogs.cnn.com)
After a number of years together, an unmarried couple in a no - common - law - marriage state decide to consolidate households. (law.stackexchange.com)