The general statement that the mental faculties are class concepts, belonging to descriptive psychology, relieves us of the necessity of discussing them and their significance at the present stage of our inquiry.

In 1879 Wundt founded the first formal laboratory for psychological research at the University of Leipzig. He is widely regarded as the "father of experimental psychology". Wilhelm Maximilian Wundt (16 August 1832 – 31 August 1920) was a German physician psychologist physiologist philosopher and professor known today as one of the founding figures of modern psychology.