René Descartes' Meditations on First Philosophy is a philosophical work composed of six meditations on things Descartes establishes that cannot be known with certainty, as well as attempts to establish all the things that can be known without a doubt. Descartes was one of the first great Western philosophers to attempt to build a foundation of certainty about knowledge. Meditation The first concerns all things that can be identified as doubtful. Descartes explains how as a child he believed many false things. Descartes declares that he must put an end to those false beliefs before he can arrive at true knowledge. He goes on to explain that he doesn't exactly have to prove that his beliefs are false, but he does have to convince himself to avoid having beliefs that are not certain. He truly believes he can find some doubt in each of his false beliefs. Consequently, what Descartes accepted as truth he learned from his senses, and the senses can often mislead someone. Even if he believes that his senses can and do deceive him, there are still things he does not allow himself to doubt, even if they were learned with those very same senses. He has decided to forget everything he thinks he knows and to start over from the foundations, rebuilding his knowledge on more precise justifications. Descartes thinks of the example of him sitting in front of the fire, wearing his winter dressing gown and touching paper. Early on he suggests that there is no way to deny that he is actually feeling those things, and he knows it from his senses. Then he thinks about whether he is dreaming, because in a dream he would think he would feel those things, but in reality he would not. Descartes goes back and forth between dreams and reality... middle of paper.... In his head, doubting everything, he can at least be sure of not letting himself be led into a lie by this so-called demon.Meditation Skeptical doubts are exposed as a question of scrutiny in its own right. Skepticism is an often discussed and hotly debated topic in philosophy today. Descartes was the first to pose the confusing question of how we can claim to know something with certainty about the world around us, and the thought of what knowledge or skepticism is. The point is not that these doubts are probable, but that their possibility can never be entirely ignored. If we can never be positive, we cannot claim to know anything. Skepticism is an attempt to provide a specific and necessary basis for our knowledge and awareness of the world. Skepticism is often taken too far and seen as a challenge to humanity's very idea of ​​rationality.