I picked "Believe you can and you're half way there" by Theodore Roosevelt. I think this means that believing in yourself is a part of trying because if you don't believe you won't get anywhere. I can apply this to my own life because there are always chances where I need to beelive in myself. I think this can make a positive change in someone's life because they will have better luck at trying. This can make an impact on the world because if people want to achieve things they need to believe in themselfs.