"Desire outwits mother nature" - Napoleon Hill

I'm in the process of reading Think and Grow Rich by Napoleon Hill. There are so many things in this book that I want to make sure I remember. I usually put a couple of post-it notes on the front cover of books that I'm reading so that I can grab one and jot down a note or two if needed. I'm about half-way through this book and gave up on the post-its and have been carrying around a notebook.
So far, this is my favorite quote:

"Desire outwits mother nature"