Philosophy covers a wide range of fundamental problems where it branches into areas such as language, ethics, political philosophy, metaphysics, logic or epistemology : the theory of knowledge. For years, philosophers have analyzed and questioned what knowledge is, its value, sources, structure, and whether we know anything at all. Epistemology questions what knowledge is and how we as humans can acquire it, which involves many debates. Although our understanding of knowledge is ambiguous, we know that knowledge is justified, true belief. There have been attempts to answer the questions through the Justified and True Belief (JTB) account of knowledge, known to have been credited by Plato. According to the theory, knowledge is explained in some way, a known proposition cannot be false, and the proposition must be accepted. The justified true belief account of knowledge, however, is considered to be a definition of knowledge in which S, a person, knows that P, a proposition, if and only if: P is true, S believes that P is true, and S he is justified in believing that P is true. However, this theory of knowledge challenges our understanding of propositional knowledge – like when people once thought they knew the earth was flat; you couldn't know what was flat, but only think you knew. The truth condition of the JTB of knowledge states that if you know that P, then P is true (Powerpoint, Lesson 4). Although P can be a statement that something else is false. Hence, Gettier problems. In Edmund L. Gettier's short article, "Is Knowledge of True Belief Justified?" discusses the question of whether information with an incorrect premise is knowledge or not. This innovative philosophical idea that Gettier wrote about, halfway down the sheet of paper, largely refutes the traditional definition of knowledge. As stated previously, many attempts have been made to repair or replace the definition of knowledge; from here theories such as the Random Theory are born, to be used as a solution to an ambiguous problem. However, there is still no positive and certain solution to Gettier's problem as effective as his challenge to define knowledge. Works Cited Gettier, Edmund L. “Is Knowledge Justified by True Belief?” EEE. Np, nd Web..Goldman, Alvin I. “A Random Theory of Knowledge.” EEE. Np, nd Web. .Powerpoint.Powerpoint