Silhak, or "Practical Learning," was a Korean intellectual movement that emerged during the late Joseon Dynasty in the 17th century. It emphasized the importance of practical knowledge and real-world applications over traditional Confucian teachings. Scholars sought to study subjects like agriculture, commerce, and technology to improve society and the economy. The movement encouraged a more empirical approach to learning, advocating for the observation of nature and the use of scientific methods. Prominent figures in Silhak included Jeong Yak-yong and Kim Jeong-hui, who contributed to various fields such as philosophy, politics, and education, ultimately influencing modern Korean thought.