The dead govern the living.

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

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

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

Everything is relative; and only that is absolute.

C'este donc par l'étude des mathématiques, et seulement par elle, que l'on peut se faire une idée juste et approfondie de ce que c'est qu'une science.

The dead govern the living.