Steve was a genius and a visionary, and I've never viewed that my role was to replace him," said Cook. "Steve was an original. I've never really felt… - Tim Cook

Don’t just accept the world you inherit today. Don’t just accept the status quo. No big challenge has ever been solved, and no lasting improvement has ever been achieved, unless people dare to try something different. Dare to think different.

If there was a lot of emotion in my voice today, it's because we've all been waiting for this day for a long time. It felt so great, … the people at this company are doing the best work of their lives, the best work that Apple has ever done.

All of these things are great conveniences of life. They change your daily life in a great way. But if you're getting bombarded by notifications all day long, that's probably a use of the system that might not be so good anymore."