These six subdivisions are grouped under the general title of “Études de Mœurs,” and in them the attempt has been made to examine and explain the general causes of earthly happiness and misery, as demonstrated in the results obtainable in the practice of the great principles of order and mortality, or in the selfish abandonment to purely personal interests. Happiness, Balzac considered, consisted in the exercise of our faculties as applied to realities. But inasmuch as its principles vary with each latitude, and ideas of right and wrong find their modifications in the climate, he concluded that morals and convictions were valueless terms, and that happiness was to be found, first, in violent emotions which undermine existence; second, in regular occupations functionating like mechanism; or, lastly, in the study of the laws of nature and in the application of the lessons thereby derived. In his treatment of this subject he has prepared a complete history of the effects of the agitation of social existence, and each of the foregoing divisions represents a particular aspect of life. In the “Scènes de la Vie Privée,” life is represented between the last developments of childhood and the first calculations of virility. These scenes contain tableaux of the emotions and undefined sensations combined with pictures of the errors committed through ignorance of the exigencies of the world. The “Scènes de la Vie de Province” represents that phase of existence in which passions, calculations, and ideas take the place of sensations, impulses, and illusions. The instincts of the young man of twenty are generous; at thirty he calculates and turns egotist. These scenes therefore initiate the reader into the thousand aspects of the transition through which a man passes when abandoning the thoughtless impulses of adolescence for the politic attitudes of manhood. Life becomes serious: positive interests jostle with violent passions, disillusions begin, the social machinery is revealed, and from the shock of moral or pecuniary interests the crime bursts in the midst of the most tranquil household. Herein are unveiled the petty annoyances by whose periodicity a poignant interest is concentrated in the slightest detail of existence. Herein are also exposed the petty rivalries, the jealousies born of vicinage, and the family worries, whose increasing force degrades and weakens the most resolute will. The charm of dreams escapes; the prosaic and the matter of fact alone exist; woman reasons, and no longer feels; she calculates where before she gave. Life is now ripened and shaded.