Necessity is a great teacher. - Derek Sivers

Since you can’t avoid problems, just find good problems.
Happiness isn’t everlasting tranquility.
Happiness is solving good problems.

Every year or two, change your job and move somewhere new.
Change the way you eat, look, and talk.
Change your preferences, opinions, and usual responses.
Try the opposite of before.

We want to see the world clearly and know what’s what. But once we’re past the first stage of wisdom, the next stage involves adapting to new changes. We don’t get wise just by adding and adding. We also need to subtract.