In "An Enquiry Concerning Human Understanding," David Hume states, "The mind has never anything to present to it but the perceptions, and cannot possibly reach any experience of their connexion without objects.the supposition of such a connexion is, therefore, without any foundation of reasoning." Skepticism, although to a degree crucial in philosophical studies, is unreasonable because it requires the rejection of a clear conclusion in support of an uncertain one. In his writings, Hume assumes that, because reasoning is based on limited senses, it is impossible to believe that our experiences are connected to truth. However, it has often been proven that such limitations have in fact led to a higher understanding of the physical world, and the conclusions that have been made cannot easily be refuted. .
In philosophical arguments, it is often realized that much, if not all human knowledge is in question. Skepticism, however, does not bring about a valid conclusion in such arguments; rather, it leads to regression. According to science, galaxies exist beyond the Milky Way. Skepticism would question such a deduction by stating that, because the fact has been based on human experience, there is not enough knowledge to come to that conclusion. But while the scientific explanation has a wide range of universal reasoning supporting the fact, skepticism has only the possibility that it may be false. If the purpose of philosophy is to discover certainty, strong skeptical arguments never produce it.
It must be remembered that philosophical topics are extremely wide ranged and abstract. Therefore, the likelihood of error in such a field is more probable than within the confines of reasoning#. If skepticism is not applicable in any other aspect of life besides the questioning of it's entirety, then it can be safely dismissed. Although in any situation, a conclusion must be questioned in order to certify that it is factual, such doubt does not have to be taken to extreme levels that negate humanity's intelligence.