But we all know well enough the personal value of certain doctors for certain cases.

Mere hygienic advice will win a victory in the hands of one man and obtain no good results in those of another, for we are, after all, artists who all use the same means to an end but fail or succeed according to our method of using them.

There are still other cases in which mischievous tendencies to repose, to endless tire, to hysterical symptoms, and to emotional displays have grown out of defects of nutrition so distinct that no man ought to think for these persons of mere exertion as a sole means of cure.

The time comes for that, but it should not come until entire rest has been used, with other means, to fit them for making use of their muscles.

Nothing upsets these cases like over-exertion, and the attempt to make them walk usually ends in some mischievous emotional display, and in creating a new reason for thinking that they cannot walk.