If my object in these pages were to present a complete scheme of counsels and maxims for the guidance of life, I should have to repeat the numerous rules—some of them excellent—which have been drawn up by thinkers of all ages; and, in so doing, I should inevitably entail upon the reader a vast amount of well-worn commonplace. But the fact is that in this work I make still less claim to exhaust my subject than in any other of my writings. An author who makes no claims to completeness must also, in a great measure, abandon any attempt at systematic arrangement. For his double loss in this respect, the reader may console himself by reflecting that a complete and systematic treatment of such a subject as the guidance of life could hardly fail to be a very wearisome business. I have simply put down those of my thoughts which appear to be worth communicating—thoughts which, as far as I know, have not been uttered, or, at any rate, not just in the same form, by anyone else; so that my remarks may be taken as a supplement to what has been already achieved in the immense field... In the following pages, I shall distribute what I have to say under the following heads: (1) general rules; (2) our relation to ourselves; (3) our relation to others; and finally, (4) rules which concern our manner of life and our worldly circumstances. I shall conclude with some remarks on the changes which the various periods of life produce in us.