What is the main principal of Adam Smith's The Wealth of the Nations?

The main principle of Adam Smith's "The Wealth of Nations" is the idea of the "invisible hand," which suggests that individuals pursuing their own self-interest can lead to economic benefits for society as a whole. Smith argues that free markets, driven by competition and voluntary exchange, promote efficiency and innovation, ultimately resulting in wealth creation. He emphasizes the importance of limited government intervention in economic activities, allowing individuals and businesses to operate freely. This framework laid the foundation for modern economic thought and capitalism.