I think the idea is have a house instead of the money for it. I kind of follow this sentiment. One could also say earn no more than you need and focus the rest

I think the idea is have a house instead of the money for it. I kind of follow this sentiment. One could also say earn no more than you need and focus the rest of your time on something valuable to you. One hour extra spent working probably does not equal to one hour less working in 5-10 year.