After reading a number of articles about Steve Jobs and Apple, I remembered this terrific commencement speech he gave at Stanford a few years ago.
There are lots of lessons to be learned from his talk, and I encourage you to watch the entire video, but here's an excerpt that has stuck with me:
Your time is limited, so don't waste it living someone else's life. Don't be trapped by dogma - which is living 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 secondary.