Surely the Example of this wise and good Man deserves our Imitation, that since old Age may be made so useful and pleasant to Men, I should have fail’d in Point of Charity to inform Mankind by what Methods they might prolong their Days.

A great Assistant to that of Sobriety, and which is highly conducive to the Preservation of the whole Man, is to renew with us that habitual and beneficial Custom of the Antients in promoting Exercise, as one great Instrument to the Conservation of Health, and which no one can deny who has given himself the Experience of a Trial.

That it promotes the Digestion, raises the Spirits, refreshes the Mind, and that it strengthens and relieves the whole Man, is scarce disputed by any; but that it should prove curative in some particular Distempers, and that too when scarce any thing else will prevail, seems to obtain little Credit with most People, who though they will give the Physician the hearing when he recommends the Use of Rideing, or any other Sort of Exercise, yet at the Bottom, look upon it as a forlorn Method, and rather the Effects of his Inability to relieve them, than a Belief that there is any great Matter in what he advises: Thus by a negligent Diffidence they deceive themselves and let slip the golden Opportunities of recovering by a diligent Struggle what could not be cur’d by the Use of Medicine alone.

But to give you a just and rational Idea of its Power of moving and actuating upon the Body, let us consider the whole human System as a Compound of Tubes and Glands, or to use a more rustick Phrase, a Bundle of Pipes and Strainers, fitted to one another after so wonderful a Manner as to make a proper Engine for the Soul to work with. This Description does not only comprehend the Bowels, Bones, Tendons, Veins, Nerves, and Arteries, but every Muscle and every Ligature, which is a Composition of Fibres, that are so many imperceptable Tubes or Pipes interwoven on all Sides with invisible Glands and Strainers.

This general Idea of a human Body, without considering it in the Niceties of Anatomy; let us see how absolutely necessary Labour is for the right Preservation of it. There must be frequent Motions and Agitations to mix, digest, and separate the Juices contained in it, as well as to clear and cleanse that Infinitude of Pipes and Strainers of which it is composed, and to give their solid Parts a more firm and lasting Tone; Exercise ferments the Humours, casts them into their proper Channels, throws off Redundancies, and helps Nature in those secret Distributions, without which the Body cannot subsist in Vigour, nor act with Chearfulness. I might here mention the Effects which this has upon the Soul, upon all the Faculties of the Mind, by keeping the Understanding clear, the Imagination untroubled, and refining those Spirits that are necessary for the proper Execution of our intellectual Faculties, during the present Laws of Union between Soul and Body.

It is a Neglect in this Particular, that we must ascribe the Spleen, which is so frequent in Men of studious and sedentary Tempers; as well as the Vapours, to which those of the other Sex are so often subject.

Had not Exercise been absolutely necessary for our Well-being, Nature would not have made the Body so proper for it, by giving such an Activity to the Limbs, and such a Pliancy to every Part, as necessarily produce those Compressions, Extensions, Contortions, Dilatations, and all other Kind of Motions that are necessary for the Preservation of such a System of Tubes and Glands as has been before mentioned.

And that we might not want Inducements to engage us in such an Exercise of the Body as is proper for its Welfare, it is so ordered, that nothing valuable can be procur’d without it. Not to mention Riches and Honour, even Food and Raiment are not to be come at without the Toil of the Hands, and Sweat of the Brows.

Providence furnishes us with Materials, but expects we should work them up ourselves. The Earth must be labour’d before it gives Encrease; and when it is forced into its several Products, how many Hands must they pass thro’ before they are fit for Use? Manufactures, Trade, and Agriculture naturally employ more than nineteen Parts of the Species in twenty; and as for those who are not obliged to labour, by the Condition in which they are born, they are more miserable than the rest of Mankind, unless they indulge themselves in that voluntary Labour call’d Exercise, of which there is no Kind I would so recommend to both Sexes, as that of Rideing; as there is none that conduces so much to Health, and is every Way accommodated to the Body. Dr. Sydenham is very lavish in its Praises, and if you would learn the mechanical Effects of it described at length, you may find it learnedly treated of by Dr. Fuller, in a late Treatise, intituled, Medicina Gymnastica, or, The Power of Exercise. And here Mr. Dryden:

The first Physicians by Debauch were made;
Excess began, and Sloth sustain’d the Trade.
By Chase our long-liv’d Fathers earn’d their Food,
Toil strung the Nerves, and purified the Blood;
But we their Sons, a pamper’d Race of Men,
Are dwindled down to threescore Years and ten.
Better to hunt in Fields for Health unbought,
Than fee the Doctor for a nauseous Draught.
The Wise for Cure on Exercise depend;
God never made his Work for Man to mend.