The power and habit which she had learned from him she applied on a far larger scale; with him, it was confined to speculations for the acquisition of money; with her, it extended to the attainment of happiness. He was calculating and mercenary: she was estimative and generous.

And the Errour is not in the Eye, whose Office is only to perceive the Appearances of things, and which does Truly so, but in the Judging or Estimative faculty, which Mistakingly concludes that Colour to belong to the Wall, which does indeed belong to the Object, because the Wall is that from whence the Beams of Light that carry the Visible Species, do come in Straight Lines directly to the Eye, as for the same Reason we are wont at a certain Distance from Concave Sphærical Glasses, to perswade our Selves that we see the Image come forth to Meet us, and Hang in the Air betwixt the Glass and Us, because the Reflected Beams that Compose the image cross in that place, where the Image seems to be, and thence, and not from the Glass, do in Direct Lines take their Course to the Eye, and upon the like Cause it is, that divers Deceptions in Sounds and other Sensible Objects do depend, as we elsewhere declare.

So with the Science and Art of Phrenology. The science is as absolute as Mathematics. In its principles there are no fallacies. To its rules there are absolutely no exceptions. The Art of Phrenology, on the other hand, is estimative, and the results of its application will depend on the graces, the gifts and the abilities of him who seeks to apply it.

In regard to Phrenology being an exact science, I have shown you that the distinction must be drawn between the principles of the science and the results of their estimative application. The principles of the science are absolute.

The power and habit which she had learned from him she applied on a far larger scale: with him it was confined to speculations for the acquisition of money; with her, it extended to the attainment of happiness. He was calculating and mercenary: she was estimative and generous.