As there are so many who talk prose without knowing it, or, again, who syllogize without having the least idea what a syllogism is, so economists hav… - William Stanley Jevons

I shall endeavor to show that induction is really the inverse process of deduction.

we often observe that there is abundance of capital to be had at low rates of interest, while there are also large numbers of artisans starving for want of employment.

You will perceive that economy, scientifically speaking, is a very contracted science; it is in fact a sort of vague mathematics which calculates the causes and effects of man's industry, and shows how it may be best applied. There are a multitude of allied branches of knowledge connected with mans condition; the relation of these to political economy is analogous to the connexion of mechanics, astronomy, optics, sound, heat, and every other branch more or less of physical science, with pure mathematics.