This is almost five years old now. The address was given in May of 2014 at the University of Texas Austin Commencement and published to YouTube that same month. My son sent me the link to this impressive speech.
These are the remarks by US Navy Admiral William H. McRaven a 1977 graduate of UT and the commander of U.S.Special Operations Command. He challenges the graduates to Change the World and relates aspects of his SEAL training to how we should approach the challenges of life.
It is five years old but is very much still appropriate. I encourage you to take the 20 minutes and listen to the talk.