"Mind is the Master power that moulds and makes,

And Man is Mind, and evermore he takes

The tool of Thought, and, shaping what he wills,

Brings forth a thousand joys, a thousand ills."

Regarded by some as one of the "best self-help books of all time" (Christian Science Monitor), As a Man Thinketh is the exploration of the power of thoughts. Ruminating on beautiful and happy thoughts influences the life of the thinker and shapes their character in that beautiful likeness, while thinking on negative things will cause the soul of the man to wither.

Furthermore, Allen's writing posits that our success in life is determined by the thoughts we think – believing and thinking of ourselves as valuable and worthy of success is essential to bringing about external success. To create the lives of our dreams, we simply need to harness the power of positive thinking.

An early predecessor of the modern self-help and self-actualization craze, As a Man Thinketh has timeless messages to those wanting to manifest greatness and success in their lives.