Moreover, in spite of what has just been said, individual treatment is better than treatment by masses, in education no less than in medicine. As a general rule, repose and fasting are good for a fever patient, but in a particular case they may not be good. A teacher of boxing, I suppose, does not recommend everyone to adopt the same style. It would seem, then, that individuals are educated more perfectly under a system of private education; for then each gets more precisely what he needs.

But you will best be able to treat an individual case (whether you are a doctor, or a trainer, or anything else) when you know the general rule, “Such and such a thing is good for all men,” or “for all of a certain temperament;” for science is said to deal, and does deal, with that which is common to a number of individuals.

I do not mean to deny that it may be quite possible to treat an individual well, even without any scientific knowledge, if you know precisely by experience the effect of particular causes upon him, just as some men seem to be able to treat themselves better than any doctor, though they would be quite unable to prescribe for another person.