In An Inquiry Concerning Human Understanding, David Hume demonstrates how there is no way to      rationally make any claims about future occurrences.   According to Hume knowledge of matters of fact     come from previous experience. From building on this rationale, Hume goes on to prove how, as     humans we can only make inferences on what will happen in the future, based on our experiences of     the past. But he points out that we are incorrect to believe that we are justified in using our experience     of the past as a means of evidence of what will happen in the future. Since we have only experience of     the past, we can only offer propositions of the future. Hume classifies human into two categories;     Relations of Ideas, and Matters of Fact. (240) Relations of ideas are either intuitively or     demonstratively certain, such as in Mathematics (240). It can be affirmed that 2 + 2 equals 4,     according to Humes relations of ideas. Matters of fact on the other hand are not ascertained in the     same manner as Relations of Ideas. The ideas that are directly caused by impressions are called     "matters of fact". With matters of fact, there is no certainty in establishing evidence of truth since     every contradiction is possible. Hume uses the example of the sun rising in the future to demonstrate     how as humans, we are unjustified in making predictions of the future based on past occurrences. As     humans, we tend to use the principle of induction to predict what will occur in the future. Out of habit,     we assume that sun will rise every day, like it has done in the past, but we have no basis of actual truth     to make this justification. By claiming that the sun will rise tomorrow according to Hume is not false,     nor is it true. Hume illustrates that the contrary of every matter of fact is still possible, because it can     never imply a contradiction and is conceived by the mind with the same facility and dis...