As A Man Thinketh is a a book about managing your own psychology. As an entrepreneur, and even as a human being in general, controlling what you choose to focus on is of the utmost importance. That’s why it is one of my personal favorites. It’s also one of the books that Tony Robbins gifts the most.
I’ve read it several times throughout my life. Each time it affirms what I’ve always known, from experience, to be true: that you are what you think about. That thoughts are things. That to improve our lives, we must first improve our thinking. In essence, we become what we think about, so we must control our mind and our thoughts.