In the texts of Rene Descartes and John Locke, both philosophers elaborate on the idea of how individuals gain knowledge. Both philosophers suggest that individuals should experience, witness, or have first-hand accounts in order to “build understanding from scratch.” With that idea in mind, Descartes implied that we should trust personal accounts rather than books, and because of that he, “spent the remainder of my youth in travelling, in visiting courts and armies, in holding intercourse with men of different dispositions and ranks, in collecting varied experience”(Descartes 6). He believes that it’s more truthful and from his travels he was “accompanied with greater success than it would have been had I never quitted my country or my books” (Descartes 6). In a more extreme perspective, Locke believed that people could only learn from personal experiences such as sensations and self-reflection from actions: “All our ideas are of the one or the other of these [Sensation or Reflection],” meaning that all knowledge gained is built from scratch by ourselves (Locke 6). The individual should be the main, if not only, source of knowledge.
While the two philosophers have very similar ideologies, they differ in the extremity of their arguments. Locke strictly believes that knowledge can only be gained from experience: “From experience: in that all our knowledge is founded, and from that it ultimately derives itself” (Locke 5). Locke did not mention learning from teachers or books, only from oneself. Descartes on the other hand, believed that our most trusted knowledge should come from personal studies rather than books. Descartes does not disapprove of the books, he actually finds them “all excellent books”; however, books should not be the basis of our knowledge (Descartes 3). Descartes even states that the reason he shares his experience “is not to teach the method which each ought to follow,” but to share a story on his approach and success (Descartes 2). While both philosophers have the similar idea of building knowledge, it is their approach that differentiate them. In regards to the idea of “build understanding from scratch,” I believe Locke would argue that everything should come from personal experience and that is the only way to grasp an understanding. On the contrary, Descartes would prefer that most of our knowledge should come from experience, books can be used to start a foundation; but should be replaced or improved with our own personal studies.