[I] Fruges consumere nati.  Horat.

The better, and in Truth only valuable, Part of Mankind, have a Turn for one sort of Business or other, but with great variety of Taste.  Some are addicted to deep Thought and Contemplation:  Some to the abstracted Speculations of Metaphysicks; some to the evident Demonstrations of the Mathematicks; some to the History of Nature, built upon true Narration, or accurate Observations and Experiments:  Some to the Invention of Hypotheses, to solve the various Phenomena.  Some affect the study of Languages, Criticism, Oratory, Poetry, and such like Studies.  Some have a Taste for Musick, some for History and those Sciences which must help to Accuracy in it:  Some have Heads turned for Politicks, and others for Wars.  Some few there are of such quick and strong Faculties, as to grasp at every thing, and who have made a very eminent Figure in several Professions at once.  We have known in our Days the same Men learned in the Laws, acute Philosophers, and deep Divines:  We have known others at once eloquent Orators, brave Soldiers, and finished Statesmen.  But these Instances are rare.

The more general Inclination among Men is to some Mechanical Business.  Of this there is most general Use for the Purposes of Human Life, and it needs most Hands to carry it on.  The bulk of Mankind seem turned for some or other of these Employments, and make them their Choice; and were not such a multiplicity of Hands engaged in them, great part of the Conveniencies of Human Life would be wanting.  But even the Multitude of these Employments leaves room for great variety of Inclinations, and for different Genij, to display and exert themselves.

This is an admirable and wise Provision to answer every End and Occasion of Mankind, for a sure and harmonious Concurrence of Mens Actions to all the necessary and useful Affairs of the World.  When in very different Ways, but with equal Pleasure and Application, they contribute to the Order and Service of the whole.  Mr. Dryden has given an Hint, how we may form a beautiful and pleasing Idea of this from the Powers of Musick, that arise from the Variety and artful Composition of Sounds.

        From Harmony, from Heavenly Harmony,
      This Universal Frame began. 
      From Harmony to Harmony,
      Thro’ all the Compass of the Notes it ran,
      The Diapasm closing full in Man.

There seems to be a wonderful Likeness in the natural Make of Mens Minds to the various Tones and Measures of Sounds; and in their Inclinations and most pleasing Tastes to the several Styles and Manners of Musick.  Something there is in the Mind, of alike Composition, that is easily touch’d by the kindred Harmony of Musick,

      For Man may justly tuneful Strains admire,
       His Soul is Musick, and his Breast a Lyre.

We have all the Materials of Musick in the Tones and Measure.  For the infinite Variety Composition admits of, can be nothing else, but higher or lower Tones, stronger or softer Sounds, with a slower or swifter Motion.  The Artist, by an harmonious Mixture of these, makes the Musick either strong and martial, brisk and airy, grave and solemn, or soft and moving.