The man in the arena. Classic. And fitting with the theme of entrepreneurship too, at least for me. When I started my first company I went to a business after hours event to meet and learn from people who'd done it before. One very bright woman took me aside into an office away from the party, told me there's one thing I need to know about business and that it's about the journey, not the destination then she turned on a computer, went online, and printed out this exact quote. She said its what got her through the hard times and after having to read it many times I can say it gets me through them too.