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But each of us comes to marriage with a disordered inner being. Many of us have sought to overcome self-doubts by giving ourselves to our careers. That will mean we will choose our work over our spouse and family to the detriment of our marriage. Others of us hope that unending affection and affirmation from a beautiful, brilliant romantic partner will finally make us feel good about ourselves. That turns the relationship into a form of salvation, and no relationship can live up to that.
— The Meaning of Marriage by Timothy Keller.