Very true. Have you read his biography? One of the things that also struck me the most in there is how often Steve seemed depressed even with all the "success". He seemed to be crying in so many stories. Even after every revolutionary thing he had accomplished, the launch of the iPad 1 made him depressed, because it just couldn't match his expectations.

Another reminder that no matter how much you achieve or obtain, all of us have a sense of ambition that can easily ruin our happiness if we don't keep it in proper control.