I once read an article in Gourmet or Bon Appetit magazine about a chef who lived in a very small apartment and who had pared down his life to fit into said apartment. He extolled the virtues of having "one good knife and one good pot."
I haven't fallen in love with one of my pots or pans yet. I'll admit that I'm always acquiring more of them. I do, have a deep fondness for one of my knives and I'm convinced that I couldn't live without it. It's my Global-G series 10" Chef's knife. Specifically, it's the Cromova 18 G-16. This knife replaced and surpassed a very beloved Chinese chef's knife that I'd used ever since I became a foodie. No matter how big or how small the job, I'd trot out that Chinese chef's knife every chance I got. Nowadays, that knife doesn't even have a spot on my magnetic knife rack. It's place having been taken up by the G-16, and some other Globals.
Global knives feature one-piece construction, a super hard alloy of chromium, molydenum, and vanadium, and a hollow handle that is filled/weighted with just enough sand for the perfect balance. No. Yoshikin, the maker of Global knives, didn't pay me to say all that. I just happen to love their knives.