Supreme Court of Illinois, Hewitt v. Hewitt (1979)
“ Of substantially greater importance than the rights of the immediate parties is the impact of such recognition upon our society and the institution of marriage. Will the fact that legal rights closely resembling those arising from conventional marriages can be acquired by those who deliberately choose to enter into what have heretofore been commonly referred to as "illicit" or "meretricious" relationships encourage formation of such relationships and weaken marriage as the foundation of our family-based society? ”
