”If I were to relapse, it would be pointless-if not hazardous-to return to the stresses at Microsoft. If I continued to recover, I now understood that life was too short to spend it unhappily." Life is too short to spend it unhappily. Whether you've got a cancer diagnosis or not, that's still true. Even those of us who appear perfectly healthy have no idea how long or short a time we have left on this Earth, and wasting years of that limited time on work that makes you miserable is simply wrong. Family needs, financial obligations, limited choices in your geography, or other factors may force you to work at a job you hate for a time. But you should always be looking for other options, and you should never stay longer than you absolutely have to. The secret to lifelong happiness is astonishingly simple, though not necessarily easy to carry out: Don't waste any more time than you can help on things that make you unhappy. Read more at inc.com.