Remembering these precepts will make your cooking better no matter what type of cuisine you are interested in. Well, it’s true that some of them especially concern Mexican cooking, but the attitude behind them can be applied to all kinds of good cooking.
A dish can only be as good as the ingredients that go into it. The ingredients won’t be good unless you learn what “good” is and insist on it. So it is imperative to find a first-class butcher, fishmonger, and produce purveyor. Spend as much time as you can in their shops asking questions, until they know you mean business about quality. With that, you’ll already have half the battle won when you come home from shopping and unpack your purchases.