To greatly enhance the odds of enjoying a career which is both fulfilling and successful, one must find an endeavor, a subject, métier, process, environment for which one has a passion. This could be aviation, geology, medical science, investing, writing fiction, etc.
In my case, it was a love of markets and investing that my father inculcated in me very early on. This passion has led me to often declare, “I have never worked a day in my life.”