It must, however, be confess'd, that this Species of Scepticism, when more moderate, may be understood in a very reasonable Sense, and is a necessary Preparative to the Study of Philosophy, by preserving a proper Impartiality in our Judgments, and weaning our Minds from all those Prejudices, which we may have imbib'd from Education or rash Opinion. To begin with clear and self-evident Principles, to advance by timorous and sure Steps, to review frequently our Conclusions, and examine accurately all their Consequences; tho' by this Means we shall make both a slow and a short Progress in our Systems; is the only Method, by which we can ever hope to reach Truth, and attain a proper Stability and Certainty in our Determinations.
There is another Species of Scepticism, consequent to Science and Enquiry; where Men are suppos'd to have discover'd, either the absolute Fallaciousness of their Mental Faculties, or their Unfitness to reach any fix'd Determination in all those curious Subjects of Speculation, about which they are commonly employ'd. Even our very Senses are brought into Dispute by this Species of Philosophers; and the Maxims of common Life are subjected to the same Doubt as the most profound Principles or Conclusions of Metaphysics and Theology. As these paradoxical Tenets (if they may be call'd so) are to be met with in somePhi-
