Positivism is a theory of knowledge according to which the only kind of sound knowledge available to human kind is that if science grounded in observation.

To understand a science it is necessary to know its history.

If we do not allow free thinking in chemistry or biology, why should we allow it in morals or politics?

To reorganize society without God or King, by the systematic culture of Humanity.

The sacred formula of positivism: love as a principle, the order as a foundation, and progress as a goal.

The law is this: that each of our leading conceptions-each branch of our knowledge-passes successively through three different theoretical conditions: the Theological, or fictitious: the Metaphysical, or abstract; and the Scientific, or positive.

Each department of knowledge passes through three stages. The theoretic stage; the theological stage and the metaphysical or abstract stage.