Who is it in any language that handleth the _Padagogicall_ argument, how to bring vp youth, but he is arrested there, where exercise is enfraunchised? As for the _Physicians_, it is a principall parcell of their fairest patrimonie, bycause it is naturally subiect, and so learnedly proued to be by _Galene_ in his booke intitled _Thrasybulus_, to that parte of their profession which seeketh to preserue health, and not to tarie till it come to ruine, with their gaine to repare it, though it still remaine ruinous and rotten, which is so repared. Therefore whensoeuer the maintenance of health, is the inscription of the booke, this title of exercise hath some euidence to shew. Further in the discours of _Exercises_ we finde eche where the names of diet, of _waking_, of _sleeping_, of _mouing_, of _resting_, of _distemperature_, of _temperature_, of _humours_, of _elementes_, of _places_, of _times_, of _partes_ of the _bodie_, of the _vses_ therof, of _frictions_ and _chafings_, of _lassitude_ and _wearinesse_, and a number such, which when the training maister meeteth with among the _Physicians_, or naturall _Philosophers_, what els say they vnto him, but that where ye finde vs before the dore, ye may be bold to come in? As for naturall _Philosophy_ the ground mistresse to _Physik_ it must needes be the foundation to this whole traine. Hence the causes be set, which proue eche thing either good or bad, either noysome or needefull to health. All naturall _problemataries_, _dipnosophistes_, _symposiakes_, _antiquaries_, _warmaisters_, and such as deale with any particular occurence of exercise, if ye appose them well: you shall finde them yours freindes. This terme _Gymnastice_, which emplyeth in name, and professeth in deede the arte of exercise, is the verie seat, wheron the trainer must builde. And therefore all either whole bookes, or particular discourses in any writer by the waie, concerning this argument, do will him to rest there. In which kinde, for the professed argument of the whole booke, I know not any comparable to _Hieronymus Mercurialis_, a verie learned _Italian Physician_ now in our time, which hath taken great paines to sift out of all writers, what so euer concerneth the whole _Gymnasticall_ and exercising argument, whose aduice in this question I haue my selfe much vsed, where he did fit my purpose.