Zhuang Zhou, also known as Zhuangzi, was an influential Chinese philosopher who lived around the 4th century BCE during the Warring States period. He is best known for his contributions to Daoism, a philosophical and religious tradition that emphasizes living in harmony with the Dao, or the fundamental nature of the universe. His writings explore themes of spontaneity, freedom, and the relativity of human concepts. Zhuangzi's most famous work, the Zhuangzi text, is a collection of stories and philosophical musings that challenge conventional thinking. Through parables and anecdotes, he encourages readers to embrace the fluidity of life and question rigid beliefs. His ideas have had a lasting impact on Chinese thought and continue to be studied and appreciated today.