Sociology being an abstract and speculative science in the same way as the other fundamental sciences, progress in it is not understood in a utilitarian or moral sense. From 1826 Comte exerted himself to prevent any equivocation on this point. The insufficiency of language, he says, obliges him to make use of the words “improvement” and “development,” of which the former and even the latter, although clearer, recalls ideas of absolute good and of indefinite amelioration, which Comte has no intention of expressing. These words for him have the simple scientific object of indicating, in social physics, a certain succession of states of the human species, “being effected according to determined laws: a usage exactly analogous to the one which physiologists make of them in the study of the individual organism, to indicate a succession of transformations with which no idea of continuous amelioration or deterioration is connected.”[270] It would be easy to treat of the whole of social physics without once using the word improvement, and always replacing it by the scientific term development. For the question is not to appreciate the respective value of successive states referred to an ideal state, but simply to establish the laws of their succession. “The present is full of the past and big with the future.” Liebnitz’s formula thus expresses the general idea of progress. Comte only makes it positive by discovering the general laws of this progress, and by showing that they are correlated to the laws of social statics. As a matter of fact, does the development of humanity lead to improvement or progress, in the moral and practical sense of the word? Social science has not to answer this question. However, Comte thinks that this improvement takes place, and that progress, so understood, can be shown at once in our condition and in our nature.[271] As proofs of this, in the first place, he gives the increase in the population, at least in that portion of humanity which he nearly always considers alone, the white race; then he mentions the law--according to which exercise perfects the organs. This progress is fixed by heredity. Comte thus admits this principle laid down by Lamarck, with this reservation, that evolution never transforms “natural dispositions.”