“Nearly all the great improvements, discoveries, inventions, and achievements which have elevated and blessed humanity have been the triumphs of enthusiasm.”

Orison Swett Marden was an American writer and editor of the late 19th and early 20th centuries. He founded *Self-Culture*, a magazine promoting personal development and success principles, and became a leading voice in the self-help movement of his era. His work emphasized willpower, optimism, and the power of positive thinking as tools for overcoming adversity.