Please don't stop

Dear Mr Murakami

I write just to let you know how much I like your books. My librarian doesn't even propose me your books, cause she knows I have already read each and every one. After 'What I Talk About When I Talk About Running' I have even started to run regulary. However, I'm not going to run a marathon(but who knows what future will bring?). Anyway, I think all of us like to hear that something what we're doing is important for other people. I and many of mine friends apreciate your writing very much. So, please don't stop.
Best regards,

Dear Kasio,

Sure, I don't have any plans to stop writing or stop running at this moment. I will keep on writing. You can count on me. Keep on running yourself.