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 heavens declare the glory of Kepler and Newton.

In mathematics we find the primitive source of rationality; and to mathematics must the biologists resort for means to carry out their researches.

The universe displays no proof of an all-directing mind.

The dead govern the living.

Woman is the most moral element in all humanity.

The word right should be excluded from political language, as the word cause from the language of philosophy.