How should scientists respond to the allegation that our "faith" in logic and scientific truth is just that — faith — not "privileged" over alternative truths? An obvious response is that science gets results. As I once wrote, "Show me a cultural relativist at 30,000 feet, and I'll show you a hypocrite... If you are flying to an international congress of anthropologists or literary critics, the reason you will probably get there — the reason you don't plummet into a ploughed field — is that a lot of Western scientifically trained engineers have got their sums right." Science supports its claim to truth by its spectacular ability to make matter and energy jump through hoops, and to predict what will happen and when.

NOTHING is more usual and more natural for those, who pretend to discover any thing new to the world in philosophy and the sciences, than to insinuate the praises of their own systems, by decrying all those, which have been advanced before them. And indeed were they content with lamenting that ignorance, which we still lie under in the most important questions, that can come before the tribunal of human reason, there are few, who have an acquaintance with the sciences, that would not readily agree with them. ' Tis easy for one of judgment and learning, to perceive the weak foundation even of those systems, which have obtained the greatest credit, and have carried their pretensions highest to accurate and profound reasoning. Principles taken upon trust, consequences lamely deduced from them, want of coherence in the parts, and of evidence in the whole, these are every where to be met with in the systems of the most eminent philosophers, and seem to have drawn disgrace upon philosophy itself.