How does the Compound Effect inspire small changes in habits that generate large outcomes later on? How is the Compound Effect similar to the exponential growth of an interest-bearing investment?

Why does Darren Hardy argue that it’s wise to assume 100% responsibility for a desired outcome even when the goal is stymied by other people or bad luck?

How does the “ripple effect” cause a habit’s effects to multiply across several dimensions of a person’s life? Explain with examples—one positive and one negative.