I think it's imperative to follow your heart and choose a profession you're passionate about, and if you haven't found that 'spark' yet, if you're not sure what you want to do with your lives - be persistent until you do.
That's why I made a comeback in 1988. I knew there were chances of not making it, but I didn't want to end up at sixty years old and say I should have tried when I was thirty-eight.