Essentialism, which promotes focusing on the truly important tasks and opportunities in life while eliminating the trivial many. The author argues that by embracing this philosophy, individuals and organizations can achieve a higher level of contribution and live more fulfilling lives. The text explores various aspects of Essentialism, including the importance of making deliberate choices, accepting trade-offs, embracing play, prioritizing sleep, setting boundaries, and cultivating a habit of focus. It offers practical strategies for implementing Essentialist principles, such as developing a clear purpose, removing obstacles, celebrating small wins, and establishing routines.