A Navy house
My father was a chief petty officer in the Royal Navy. He didn't give speeches about discipline. He expected the bed to be made, properly, every morning. It seemed like a small thing. It was the whole point: if you can't keep a small promise to yourself, you won't keep a big one.
He taught me something else that took me years to appreciate. Question your sources. Find out where a claim came from before you repeat it or act on it. And understand that people see justice very differently depending on where they're standing, so the standard to hold, for yourself and for others, is a fair process rather than the outcome you'd like.
Create order first. Think critically and act fairly. The first and last principles came from home.