This introductory text establishes the foundation for Auguste Comte's systematic approach to human knowledge, tracing its historical evolution across distinct intellectual epochs. The author reflects on the genesis of his course, which originated from years of research and lectures delivered before prominent members of the Academy of Sciences. He outlines his intention to define a unified methodology that applies scientific reasoning equally to all domains of inquiry, including social phenomena.
At the core of this philosophical system lies a fundamental law concerning the progressive development of the human mind. Every branch of knowledge inevitably passes through three successive theoretical states. In the initial theological state, humanity seeks absolute explanations by attributing physical events to supernatural agents. During the transitional metaphysical state, these divine entities are replaced by abstract forces and personified essences. Finally, in the scientific or positive state, the mind abandons the pursuit of ultimate causes and origins, focusing instead on discovering invariant laws through rigorous observation and reasoning.
The author explains that the theological and metaphysical phases were historically necessary stages. Primitive humanity required the imaginative stimuli of theological ideas and chimeric pursuits, such as alchemy and astrology, to build the persistence needed for systematic observation. Without these initial frameworks, the human intellect would have been trapped in a logical circle, unable to gather initial facts without pre-existing theories. Metaphysics later served as a vital stepping stone, gradually subverting supernatural concepts into abstract terms that paved the way for purely natural explanations.
Ultimately, positive philosophy defines itself by its rejection of unanswerable questions regarding the inner nature of things. Instead, it treats all observable phenomena as subject to invariable natural laws, seeking to unify diverse facts under broad general principles, such as the law of gravitation. By recognizing the boundaries of human reason, positive science achieves stable and verifiable explanations without resorting to theological speculation or metaphysical subtlety.