I have a few favorite quotes, so I will tell you all of them!
"Do not let what you cannot do interfere with what you can do." - John Wooden
"Obstacles cannot break me, all walls break to stern resolve. He who is fixed to a star cannot fail." - Leonardo da Vinci
"Hold fast to dreams, for if dreams die, life is a broken winged bird that cannot fly." - Langston Hughes
"Never, never, never give up." - Winston Churchill
"I am not what I ought to be. I am not what I want to be. I am not what I hope to be. But still, I am not what I used to be. And by the grace of God, I am what I am." - John Newton