Neil Clark Warren (born September 18, 1934) is an American clinical psychologist, Christian theologian, seminary professor and co-founder of the online relationship sites eHarmony and Compatible Partners. In 1995, Warren and his son-in-law, Greg Forgatch, created Neil Clark Warren & Associates, a company which offers seminars and teaching tools based on Warren's books. In early 2000, they established eHarmony, an online compatibility matching service which gained two million users in its first three years. After retiring in 2007, Warren came out of retirement in July 2012, returning as the chief executive of eHarmony. Early life and education Born and raised near Des Moines, Iowa, Warren developed an interest in compatibility when young. Although his parents' marriage lasted seventy years, Warren was frustrated by their inability to communicate with each other: "They had a nice marriage, but they were not a very well-matched couple. ... My dad was just so stinking bright, and my mom was so sweet, but she was two standard deviations below him in intelligence," Warren said. When his father ran for office in Polk County, Warren's mother refused to vote because she didn't think one should meddle in politics. Warren received his undergraduate degree at Pepperdine University in 1956. He got his master's in divinity at Princeton Theological Seminary in 1959. Warren received his Ph.D. in clinical psychology from the University of Chicago in 1967. Career Psychologist Warren is a former dean and psychologist at the Graduate School of Psychology at Fuller Theological Seminary. During these years, he worked in private practice as a clinical psychologist. In 35 years of therapy, Warren focused on marriage compatibility and performed many "divorce autopsies". In the process, Warren developed an interest in helping singles find lasting relationships. Author and businessman Warren has written about individuals finding the right marriage partner. He published his first pamphlet in 1975 entitled Selecting a Marriage Partner. By 2013, Warren had written ten books, including Learning to Live with the Love of Your Life, Love the Life you Live: 3 Secrets to Feeling Good—Deep Down in Your Soul, and Date or Soul Mate?: How to Know If Someone Is Worth Pursuing in Two Dates or Less. In 1995, Warren and his son-in-law Greg Forgatch established Neil Clark Warren & Associates, a company offering seminars and teaching tools based on Warren's book Finding the Love of Your Life (published in 1993). Building upon his writing on