August Comte

argued that sociology was the apex of the sciences, and the others had their reason for existence only in so far as they could provide illumination for the science of society.

This was an undertaking which, in scope and patience was second in modern times only to Spencer's "Synthetic Philosophy." Here the sciences were classified according to the decreasing simplicity and generality of their subject-matter: mathematics, astronomy, physics, chemistry, biology, and sociology; each rested on the results of all the sciences before it; therefore sociology was the apex of the sciences, and the others had their reason for existence only in so far as they could provide illumination for the science of society.

august comte, n.Definitions

august comte