Anyway here it is:
"If the first plan which you adopt does not work successfully, replace it with a new plan, if this new plan fails to work, replace it, in turn with still another, and so on, until you find a plan which DOES WORK. Right here is the point at which the majority of men meet with failure, because of their lack of PERSISTENCE in creating new plans to take the place of those which fail."
"No man is ever whipped, until he QUITS-in his own mind. This fact will be repeated many times, because it is so easy to "take the count" at the first sign of defeat."
- Napoleon Hill, Think And Grow Rich
This quote has motivated me a lot and I think it goes to show an important lesson that everyone has to learn from their failures. I've definitely decided not to ever give up until I have what I want out of life and I hope this quote can inspire others to take action and never give up also.