Man of la Mancha Musical

My parents and girlfriend and I went to the Man Of La Mancha Musical. The room I rent in Kauai is from Mike Adnoff and his daughter had the lead role in the play, she did a great job and the play was cool.
One quote I really liked was during a song, you can read it below.
The mission of each true knight, his duty — nay — his privilege...
To dream the impossible dream
To fight the unbeatable foe
To bear with unbearable sorrow
To run where the brave dare not go.
To right the unrightable wrong
To love pure and chaste from afar
To try when your arms are too weary
To reach the unreachable star.