> "Always listen to your wife, she is always reasonable"
My father gave me one specific piece of advice that stuck with me through the entirety of the time I can remember, and it also helped me out quite a lot in life. The advice wasn't directly related to marriage or anything like that, it was about making major decisions in general. I didn't truly understand what it meant at the time, but once I realized it, it hit me like a truck and put a lot of things in perspective.
He said "Always listen to everyone's opinions, but always make your own decision."
Being a teenager at the time, I misinterpreted it as "listen to what everyone else says and then do your own different thing." A very typical non-conformist teenager take. But much later on, I realized that it meant something entirely different.
What he actually meant: "You should consider others' opinions when making a major decision, as it can let you make a better and more informed one. If you picked a decision that aligned with what someone else advised, that's absolutely fine. But, in the end, you own that decision and the consequences. You cannot hide behind a 'so and so advised that, which is why I made it' excuse. You are responsible for it, and you cannot blame people who provided their perspective for the resulting outcome."
Thinking about this piece of advice when making major life decisions helps me a lot. Both with pulling the trigger on it in a more informed way and accepting the eventual outcome.