Your potential is the possible you. Very few of us focus our energy enough to discover the outer edge of our capabilities. You are much more than you know yourself to be.
Here are a variety of movie quotes about human potential.
"There's a mighty warrior inside of you. You just have to let him out."
"You can do anything you want. You can be anyone you want and it's going to be a wild ride."
"Each of us is more than the worst thing that we've ever done."
"You must not limit yourself."
"Talent isn't genius and no amount of energy can make it so."
"Promise must be fulfilled. Promise can never be an end in itself."
'As long as there are those that remember what was, there will always be those that are unable to accept what can be."
"People say nothing is impossible but I do nothing every day."
"You're a better man than you think you are."
"You must learn to sacrifice for a higher purpose; to push yourself beyond all limitation."