ful Tryal, exactly to determine. This is certain, that Attempts of this Kind are every day made even by those, who philosophize the most negligently; and nothing can be more requisite than to enter upon the Enterprize with thorough Care and Attention; that, if it lie within the Compass of human Understanding, it may at last be happily atchiev'd; if not, it may, however, be rejected with some Confidence and Security. This last Conclusion, surely, is not desirable, nor ought it to be embrac'd too rashly. For how much must we diminish from the Beauty and Value of this Species of Philosophy, upon such a Supposition? Moralists have hitherto been accustom'd, when they consider'd the vast Multitude and Diversity of Actions, that excite our Approbation or Dislike, to search for some common Principle, on which this Variety of Sentiments might depend. And tho' they have sometimes carry'd the Matter too far, by their Passion for some one general Principle; it must, however, be confest, that they are excusable, in expecting to find some general Principles, into which all the Vices and Virtues were justly to be resolv'd. The like has been the Endeavour of Critics, Logicians, and even Politicians: Nor have their Attempts been altogether unsuccessful; tho' perhaps longer Time, greater Accuracy, and more ardent Application may bring these Sciences still nearer their Perfection. To throw up at once all Pretensions of this Kind may be justlyesteem'd
