Hugh Grant doesn’t believe in monogamy

During an interview with Howard Stern on his SiriusXM radio show, Hugh Grant was quite opinionated when it came to the topic of monogamy.
The actor admitted that the idea of a monogamous marriage sounds nice in theory.
"But, people make so many mistakes.
Do I think human beings are meant to be in 40-year-long monogamous, faithful, relationships?
No, No, No.