“Not in our power are all the elements which constitute our environment, such as wealth, health, reputation, social prestige, power, the lives of those we love, and death. In our power are our thinking, our intentions, our desires, our decisions. These make it possible for us to control ourselves and to make of ourselves elements and parts of the universe of nature. This knowledge of ourselves makes us free in a world of dependencies. This superiority of our powers enables us to live in conformity with nature.”