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

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.

Woman is the most moral element in all humanity.

The heavens declare the glory of Kepler and Newton.

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

Nothing is destroyed until it is replaced.

Every attempt to employ mathematical methods in the study of chemical questions must be considered profoundly irrational and contrary to the spirit of chemistry.... if mathematical analysis should ever hold a prominent place in chemistry -- an aberration which is happily almost impossible -- it would occasion a rapid and widespread degeneration of that science.