Every science consists in the coordination of facts; if the different observations were entirely isolated, there would be no science.

Indeed, every true science has for its object the determination of certain phenomena by means of others, in accordance with the relations which exist between them.

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

Ideas govern the world, or throw it into chaos.

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

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