There is nothing else but now. There is neither yesterday, certainly, nor is there tomorrow. How old must you be before you know that? There is only now, and if now is only two days, then two days is your life and everything in it will be in proportion. This  is how you live a life  in two days. And if you stop complaining and asking for what you never will get, you will have a good life. A good life is not measured  by any biblical span.  So now do not worry, take what you have, and do your work and you will have a long life and very merry one.

 From “For Whom the Bells Toll” by Ernest Hemingway

Hemingway expressed in his brilliant prose how to live a happy two-day life.  He doesn’t follow nowadays’ predominant view that you should have fun and forget about everything else.   We must do our work, our duty, as well as enjoy what we have, which we often take for granted.  Have fun too, of course, have a ball!  But remember—duty before diversion.