Can somebody rephrase this for me?

Henry David Thoreau and Ralph Waldo Emerson both came to the conclusion that nature is the key to knowing life and it is what forces us not to depend on other’s ideas, but to develop our own. Thoreau tests Emerson’s ideas by living at Walden Pond where he finds like Emerson that, simplicity in physical aspects brings deepness to our mind, our soul to its fullest potential, and our imagination to be uplifted to change our lives. Nature is ever changing so we must keep searching for explanations about human life through Simplicity, the Value and Potential of Our Soul, and Our Imagination.