Quote of the day by Lao Tzu explores the famous line “Those who know do not speak. Those who speak do not know.” The saying links knowledge, education, human behavior, wisdom, silence, and smart thinking with Daoism and the life of Laozi. This explainer shares meaning, history, biography, legends, and life lessons. It explains how the Daodejing shaped philosophy, Buddhism, and belief systems and why the quote still matters today.