read the 2 attached file, and write a response of 500 words minimum answering the following questions. DISCUSSION QUESTION & ‘RESPONSE’ TOPIC #4: Descartes wanted to doubt things in order to arrive at certainty and a solid foundation that he can use as the basis for his knowledge and justification for other beliefs. (1) Explain CLEARLY and IN DETAIL (a) his philosophy of arriving at CERTAINTY as a solid foundation for knowledge (foundationalism), (b) how he did this, i.e., (i) his method or process of doubt, (ii) what he doubted, and (iii) the reasons for or how he doubted them. (2) What practical lessons, which have relevance to everyday life, can you learn from his method or process of doubt, his idea of trying to establish certainty and a solid foundation for knowledge, and the idea of being skeptical of anything until and unless you have solid evidence or proof for it? Explain.