The Secret of the Ages by Robert Collier

What makes a New Thought classic? Obviously most of these books are delivering the exact same message. Collier here demonstrates a combination of factors which seems to win over readers: a folksy style, lots of inspirational quotes, particularly from the Bible, and, most of all, constant repetition of the theme that you, too, can tap the power of the Infinite, and get healthy and rich just by instructing your unconscious mind to do so.