"Remembering that I'll be dead soon is the most important tool I've ever encountered to help me make the big choices in life. Because almost everything - all external expectations, all pride, all fear of embarrassment or failure - these things just fall away in the face of death, leaving only what is truly important. Remembering that you are going to die is the best way I know to avoid the trap of thinking you have something to lose. You are already naked. There is no reason not to follow your heart."
http://www.bbc.co.uk/news/world-us-canada-15195448
More about his life, times and global impact at
http://en.wikipedia.org/wiki/Steve_Jobs