The following are quotes that I found especially moving from the movie The Matrix in 1999. Of course there are tons of blogs around this as well. I quite like this one.
Create Your Own Reality
Morpheus coaching "Don't think you are -- KNOW you are. I can only show you the door, you're the one who has to walk through it."
Free your mind, let go of fear, doubt, disbelief. Your mind makes it real.
Human beings define their primitive existence through pain and suffering.
There's a difference between knowing the path and walking the path.