I was awe-struck when he introduced himself as, "co-chair of the Bill & Melinda Gates Foundation" rather than the chairman of Microsoft on his Reddit AMA (http:

I was awe-struck when he introduced himself as, "co-chair of the Bill & Melinda Gates Foundation" rather than the chairman of Microsoft on his Reddit AMA (http://www.reddit.com/r/IAmA/comments/18bhme/im_bill_gates_cochair_of_the_bill_melinda_gates http://www.reddit.com/r/IAmA/comments/18bhme/im_bill_gates_c...). I think it really is his life's primary focus right now.