Philosophical Influences on the Counterculture Movement

During the 1960s and 1970s, a counterculture movement emerged in the United States, challenging traditional societal norms and promoting alternative lifestyles. This movement was characterized by its rejection of consumerism, an embrace of peace, and a quest for personal freedom. Key events such as the Summer of Love and the Woodstock Festival symbolize this era's commitment to peace, love, and unity. Additionally, the counterculture was heavily influenced by the writings of various philosophers and thinkers.

Which of the following best describes a philosophical influence that significantly shaped countercultural beliefs during this period?