In Bill Gates' closing remarks on his Reddit AMA earlier today, he left the Internet with the following message:

Thanks for the great AMA, Reddit! I hope you'll read my annual letter www.billsletter.com and visit my website, The Gates Notes, www.gatesnotes.com to see what I'm working on. I'd just like to leave you with the thought that helping others can be very gratifying.

You heard the man, Internet. [Reddit]