Which american author, known as the "sage of concord," wrote an essay called "self-reliance" arguing that if people learned to understand nature they would understand themselves?

Ralph Waldo Emerson.

Explanation:

Ralph Waldo Emerson was an american writer that embodied the American Transedalism movement, he encouraged other writers to find their own style instead of imitating that of the foreign invaders predecesors. In his essay Self-Reliance he encourages the reader to search for his own path, and grow his own way instead of the way the society tells him to do so, instead of living by the rules of the church, find your own rules, while living in peace with nature and humans.

salmon were fished in puget sound.