Stanford University Commencement address by Steve Jobs in 2005:

Your time is limited, so don't waste it living someone else's life. Don't be trapped by dogma - which is livign with the results of other people's thinking. Don't let the noise of others' opinions drown out your own inner voice. And most important, have the courage to follow your heart and intuition. They somehow already know what you truly want to become. Everything else is secodnary. Stay Hungry. Stay Foolish !