Some apology may be thought due to the reader, for an endeavour to engage his attention on a subject of which no profound study seems compatible with the work in which I am usually employed. But profound study is not, in this case, necessary either to writer or reader, while accurate study, up to a certain point, is necessary for us all. Political economy means, in plain English, nothing more than "citizens' economy"; and its first principles ought, therefore, to be understood by all who mean to take the responsibility of citizens, as those of household economy by all who take the responsibility of householders. Nor are its first principles in the least obscure: they are, many of them, disagreeable in their practical requirements, and people in general pretend that they cannot understand, because they are unwilling to obey them; or, rather, by habitual disobedience, destroy their capacity of understanding them. But there is not one of the really great principles of the science which is either obscure or disputable-which might not be taught to a youth as soon as he can be trusted with an annual allowance, or to a young lady as soon as she is of age to be taken into counsel by the housekeeper. I might, with more appearance of justice, be blamed for thinking it necessary to enforce what everybody is supposed to know.