This article explores how human labor and money interact in the economy by looking at classical economic theories. It addresses issues with the classical labor theory of value and proposes a new, more general theory to solve these problems. The new theory sheds light on concepts like money-capital, standard commodities, and the role of labor in the economy. The research suggests that in a capitalist system, market prices tend to stabilize around natural prices due to competition for profit. By using a dynamic model, the study shows how prices and labor costs reach a balanced state over time, supporting the classical law of value.