if you keep your wife happy, you will avoid trouble. [1900s]
2014 September 22, Rebecca Adams, “Study Finds That 'Happy Wife, Happy Life' Is Pretty Dead On”, in Huffington Post[1]:
There's all sorts of antiquated marriage advice out there, but it turns out that there's one relationship trope that actually holds true: "Happy wife, happy life."
2018 February 10, Rick Fortier, “Exposing the Myth of ‘Happy Wife Happy Life’”, in The Good Men Project[2]:
In a “Happy Wife Happy Life” relationship, men suffer in silence and women believe everything is okay as long as they’re getting what they want.
