 We can begin to see why Hegel was motivated to use a dialectical method by examining the project he set for himself, particularly in relation to the work of David Hume and Immanuel Kant (see entries on  Hume  and  Kant).  Hume had argued against what we can think of as the naïve view of how we come to have scientific knowledge. According to the naïve view, we gain knowledge of the world by using our senses to pull the world into our heads, so to speak. Although we may have to use careful observations and do experiments, our knowledge of the world is basically a mirror or copy of what the world is like. Hume argued, however, that naïve science’s claim that our knowledge corresponds to or copies what the world is like does not work. Take the scientific concept of cause, for instance. According to that concept of cause, to say that one event causes another is to say that there is a necessary connection between the first event (the cause) and the second event (the effect), such that, when the first event happens, the second event must also happen. According to naïve science, when we claim (or know) that some event causes some other event, our claim mirrors or copies what the world is like. It follows that the necessary, causal connection between the two events must itself be out there in the world. However, Hume argued, we never observe any such necessary causal connection in our experience of the world, nor can we infer that one exists based on our reasoning (see Hume’s A Treatise of Human Nature, Book I, Part III, Section II; Enquiry Concerning Human Understanding, Section VII, Part I). There is nothing in the world itself that our idea of cause mirrors or copies.