Wallace Delois Wattles (/?w??t?lz/; 1860–1911) was an American New Thought writer. He remains personally somewhat obscure, but his writing has been widely quoted and remains in print in the New Thought and self-help movements.

Wattles' best known work is a 1910 book called The Science of Getting Rich in which he explains how to become wealthy. Wikipedia, Wallace Delois Wattles

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"There is a thought stuff that permeates, penetrates and fills the innerspaces of the cosmos." [Wallace D. Wattles]