Apple Watch is the most personal device we've ever created.

So I had to figure out for myself what was right and true. It was a search. It was a process. It drew on the moral sense that I'd learned from my parents, and in church, and in my own heart, and led me on my own journey of discovery.

An acorn would never brag about giving shade.

It's the privilege of a lifetime for me to work with the most innovative people on Earth.

No matter what you do next, the world needs your energy, your passion, your impatience for progress. Don't shrink from risk. And tune out those critics and cynics. History rarely yields to one person, but think, and never forget, what happens when it does. That can be you. That should be you. That must be you.

Those who try to achieve success without hard work ultimately deceive themselves-or worse-deceive others.

You can focus on things that are barriers or you can focus on scaling the wall or redefining the problem.