Your address, friends and goals can all change. Let your values be the luggage that travels with you.

Almost everything about your life is negotiable over a decade. Where you live, who you see, what you are working towards: all of it can be different and probably will be. What holds the versions together is a small set of things you refuse to trade, and those are worth choosing deliberately rather than inheriting by accident.

Write down three things you would not do for any amount of advantage. Keep the list short enough to remember. When a big decision comes, check it against those three before checking it against anything else.