> To conclude, I think that there is only one way to science—or to philosophy, for that matter: to meet a problem, to see its beauty and fall in love with it; to get married to it, and to live with it happily, till death do ye part—unless you should meet another and even more fascinating problem, or unless, indeed, you should obtain a solution. But even if you do obtain a solution, you may then discover, to your delight, the existence of a whole family of enchanting though perhaps difficult problem children for whose welfare you may work, with a purpose, to the end of your days.
https://archive.org/details/realismaimofscie0000popp/page/8/...
Edit: if I heed the content of the paragraphs just before this quote, maybe I should prefer the rewritten version.
So far as moral duty goes, play to your strengths, you're at your best when having fun. This conveniently evaluates to "do what you like". It's not perfectly true, but you can get away with it, blamelessly. Nobody needs you miserable, usually. Then there's the wrinkle where the importance of something to humanity (or even the promise of a large cash reward) may make it fun ... if you happen to feel that way.