SECTION 7. Whether we are in a pleasant or a painful state depends, ultimately, upon the kind of matter that pervades and engrosses our consciousness. In this respect, purely intellectual occupation, for the mind that is capable of it, will, as a rule, do much more in the way of happiness than any form of practical life, with its constant alternations of success and failure, and all the shocks and torments it produces. But it must be confessed that for such occupation a pre-eminent amount of intellectual capacity is necessary. And in this connection it may be noted that, just as a life devoted to outward activity will distract and divert a man from study, and also deprive him of that quiet concentration of mind which is necessary for such work; so, on the other hand, a long course of thought will make him more or less unfit for the noisy pursuits of real life. It is advisable, therefore, to suspend mental work for a while, if circumstances happen which demand any degree of energy in affairs of a practical nature. SECTION 8. To live a life that shall be entirely prudent and discreet, and to draw from experience all the instruction it contains, it is requisite to be constantly thinking back,--to make a kind of recapitulation of what we have done, of our impressions and sensations, to compare our former with our present judgments--what we set before us and struggle to achieve, with the actual result and satisfaction we have obtained. To do this is to get a repetition of the private lessons of experience,--lessons which are given to every one. Experience of the world may be looked upon as a kind of text, to which reflection and knowledge form the commentary. Where there is great deal of reflection and intellectual knowledge, and very little experience, the result is like those books which have on each page two lines of text to forty lines of commentary. A great deal of experience with little reflection and scant knowledge, gives us books like those of the _editio Bipontina_[1] where there are no notes and much that is unintelligible. [Footnote 1: _Translator's Note_. A series of Greek, Latin and French classics published at Zweibräcken in the Palatinate, from and after the year 1779. Cf. Butter, _Ueber die Bipontiner und die editiones Bipontinae_.]