Examination of Common Sense First principle from Reid Prospect

Every epistemic structure inevitably begins from presupposes which their truth should be treated as doubtless. Thomas Reid hold that there are many presupposes that sensible people suppose them as undoubted truths, and on the basis of their truth build their knowledge. With a scientific method, he tried to reveal these presupposes, which he called them first principles of common sense, principles that come from our nature, and on the basis of them we conduct our life toward others and the world. My target in this article is to narrate these first principle according to Reid`s books, and to examine their role in the human knowledge, as well as declaration of our inevitability in presupposing them. In the end, I`ll set to importance of these principles in Reid`s point of view, and in the conclusion I`ll say that without presupposing first principles of common sense, we lose a massive bulk of our knowledge which are critical for us.