Thoreau's classic account of the solitary life, describing his attempts to simplify his life and sort out his priorities by living alone in a cabin beside Walden Pond for nearly two years, is one of the most influential books ever written. The bible of the environmental movement, Walden vividly portrays Thoreau's reverence for nature, and his understanding of the idea that nature is made up of crucially interrelated parts.

Continuing where Thus Spoke Zarathustra left off, Nietzsche's controversial work Beyond Good and Evil is one of the most influential philosophical texts of the 19th century and one of the most controversial works of ideology ever written. Attacking the notion of morality as nothing more than institutionalised weakness, Nietzsche criticises past philosophers for their unquestioning acceptance of moral precepts. Nietzsche tried to formulate what he called "the philosophy of the future".

Essentialism is more than a time-management strategy or a productivity technique. It is a systematic discipline for discerning what is absolutely essential, then eliminating everything that is not, so we can make the highest possible contribution toward the things that really matter.

Why do some products get more word of mouth than others? Why does some online content go viral? Word of mouth makes products, ideas, and behaviors catch on. It's more influential than advertising and far more effective. Can you create word of mouth for your product or idea? According to Berger, you can. Whether you operate a neighborhood restaurant, a corporation with hundreds of employees, or are running for a local office for the first time, the steps that can help your product or idea become viral are the same.

As he did in Who Not How, Dr. Benjamin Hardy shares one of Dan Sullivan's simple yet profound teachings that until now has been known only to his Strategic Coach clients: unsuccessful people focus on "The Gap", but successful people focus on "The Gain".