Wallace D. Wattles spent most of his life in poverty and obscurity — a failed farmer, failed political candidate, and itinerant lecturer who studied the great metaphysical and philosophical systems of his time without ever finding financial success in them. Then, in the last years of his life, he wrote three slim, precise books that distilled everything he had learned. The Science of Getting Rich (1910) was one of them. Wattles died the following year. His daughter reported that he did, finally, begin to prosper in his final months — proof of concept, or coincidence, depending on your view.
Wattles's framework begins with a metaphysical claim: there exists a Thinking Substance that permeates and penetrates all things. This substance thinks, and every thought takes form in it. When a person holds a clear mental image of what they desire — with faith, gratitude, and purposeful action — they impress this image on the Thinking Substance, which then moves to manifest it in physical reality through the available channels of supply and circumstance.
This is New Thought metaphysics stated with unusual directness. Wattles does not hedge or qualify — he presents the system as a science, with laws as reliable as gravity, and argues that poverty is not virtue but waste, and that any person who applies the system correctly will become wealthy. His confidence borders on the absolute, which is simultaneously the book's greatest strength and its most significant limitation.
There is a thinking stuff from which all things are made, and which, in its original state, permeates, penetrates, and fills the interspaces of the universe. A thought in this substance produces the thing that is imaged by the thought.
— Wallace Wattles, The Science of Getting RichWattles's life is a useful test case for his own system. He spent decades studying and applying New Thought principles without achieving the wealth he wrote about — which either means the principles don't work, that he wasn't applying them correctly until the end, or that external circumstances (poverty, limited opportunity, the historical period) created obstacles the mental system alone could not overcome. Wattles himself would say it was the second option; critics would say it's the third.
The Science of Getting Rich is, regardless of its metaphysical claims, one of the most precisely written books in the New Thought tradition. Its argument is clear, its principles are specific, and its insistence on action alongside mental work distinguishes it from the more passive manifestation teaching that followed. Even a reader who rejects the Thinking Substance metaphysics will find practical value in the emphasis on clear goals, gratitude, creative rather than competitive thinking, and giving genuine value in exchange for what is received.