Hence the young man is not a fit student of Moral Philosophy, for he has no experience in the actions of life, while all that is said presupposes and is concerned with these: and in the next place, since he is apt to follow the impulses of his passions, he will hear as though he heard not, and to no profit, the end in view being practice and not mere knowledge. And I draw no distinction between young in years, and youthful in temper and disposition: the defect to which I allude being no direct result of the time, but of living at the beck and call of passion, and following each object as it rises.[3] For to them that are such the knowledge comes to be unprofitable, as to those of imperfect self-control: but, to those who form their desires and act in accordance with reason, to have knowledge on these points must be very profitable. Let thus much suffice by way of preface on these three points, the student, the spirit in which our observations should be received, and the object which we propose. Chapter II. And now, resuming the statement with which we commenced, since all knowledge and moral choice grasps at good of some kind or another, what good is that which we say πολιτικὴ aims at? or, in other words, what is the highest of all the goods which are the objects of action? So far as name goes, there is a pretty general agreement: for HAPPINESS both the multitude and the refined few call it, and “living well” and “doing well” they conceive to be the same with “being happy;” but about the Nature of this Happiness, men dispute, and the multitude do not in their account of it agree with the wise. For some say it is some one of those things which are palpable and apparent, as pleasure or wealth or honour; in fact, some one thing, some another; nay, oftentimes the same man gives a different account of it; for when ill, he calls it health; when poor, wealth: and conscious of their own ignorance, men admire those who talk grandly and above their comprehension. Some again held it to be something by itself, other than and beside these many good things, which is in fact to all these the cause of their being good. Now to sift all the opinions would be perhaps rather a fruitless task; so it shall suffice to sift those which are most generally current, or are thought to have some reason in them. And here we must not forget the difference between reasoning from principles, and reasoning to principles: for with good cause did Plato too doubt about this, and enquire whether the right road is from principles or to principles, just as in the racecourse from the judges to the further end, or _vice versâ_.