Who was a Free market philosopher?

One prominent free market philosopher was Adam Smith, often considered the father of modern economics. Smith's seminal work, "The Wealth of Nations," published in 1776, laid the foundation for classical economics and promoted the idea of free markets and limited government intervention. Smith argued that individuals pursuing their self-interest in a competitive market would lead to overall economic prosperity and societal benefit. His theories continue to influence economic thought and policy to this day.