A few years back my friend's father took us to see John Wooden speak in Salt Lake City. I was still in high school, and I still remember how Coach Wooden taught me that day. He taught me to succeed, and I wish I had a transcript of that talk, but I don't. I found this video that basically encapsulates what he said that day that has been so formative for me.
In case you don't know who Coach Wooden is, he is the most successful and greatest coach in any sport, ever. I know that's a bold statement, but if you look it up, it's a pretty good consensus that it's true. His words are incredible, a formula for success!