In the following pages, I shall attempt (1) to discriminate morality, properly so called, from other sanctions of conduct; (2) to determine the precise functions, and the ultimate justification, of the moral sentiment, or, in other words, of the moral sanction; (3) to enquire how this sentiment has been formed, and how it may be further educated and improved; (4) to discover some general test of conduct; (5) to give examples of the application of this test to existing moral rules and moral feelings, with a view to shew how far they may be justified and how far they require extension or reformation. As my subject is almost exclusively practical, I shall studiously avoid mere theoretical puzzles, such as is pre-eminently that of the freedom of the will, which, in whatever way resolved, probably never influences, and never will influence, any sane man's conduct. Questions of this kind will always excite interest in the sphere of speculation, and speculation is a necessity of the cultivated human intellect; but it does not seem to me that they can be profitably discussed in a treatise, the aim of which is simply to suggest principles for examining, for testing, and, if possible, for improving the prevailing sentiment on matters of practical morals. To begin with the first division of my subject, How is morality, properly so called, discriminated from other sanctions of conduct? By a sanction I may premise that I mean any pleasure which attracts to as well as any pain which deters from a given course of action. In books on Jurisprudence, this word is usually employed to designate merely pains or penalties, but this circumstance arises from the fact that, at least in modern times, the law seldom has recourse to rewards, and effects its ends almost exclusively by means of punishments. When we are considering conduct, however, in its general aspects and not exclusively in its relations to law, we appear to need a word to express any inducement, whether of a pleasureable or painful nature, which may influence a man's actions, and such a word the term 'sanction' seems conveniently to supply. Taking the word in this extended sense, the sanctions of conduct may be enumerated as the physical, the legal, the social, the religious, and the moral. Of the physical sanction familiar examples may be found in the headache from which a man suffers after a night's debauch, the pleasure of relaxation which awaits a well-earned holiday, the danger to life or limb which is attendant on reckless exercise, or the glow of constant satisfaction which rewards a healthy habit of life. These pleasures and pains, when once experienced, exercise, for the future, an attracting or a deterring influence, as the case may be, on the courses of conduct with which they have respectively become associated. Thus, a man who has once suffered from a severe headache, after a night's drinking-bout, will be likely to exercise more discretion in future, or