I have always said if there ever came a day when I could no longer meet my duties and expectations as Apple’s CEO, I would be the first to let you know. Unfortunately, that day has come.引用元：Steve Jobs Resigns As CEO Of Apple | TechCrunch
I hereby resign as CEO of Apple. I would like to serve, if the Board sees fit, as Chairman of the Board, director and Apple employee. As far as my successor goes, I strongly recommend that we execute our succession plan and name Tim Cook as CEO of Apple. I believe Apple’s brightest and most innovative days are ahead of it. And I look forward to watching and contributing to its success in a new role.
I have made some of the best friends of my life at Apple, and I thank you all for the many years of being able to work alongside you.
CUPERTINO, California—August 24, 2011—Apple’s Board of Directors today announced that Steve Jobs has resigned as Chief Executive Officer, and the Board has named Tim Cook, previously Apple’s Chief Operating Officer, as the company’s new CEO. Jobs has been elected Chairman of the Board and Cook will join the Board, effective immediately.引用元：Steve Jobs Resigns as CEO of Apple