Knowledge includes the way an individual thinks, which may be influenced by their experience, observation, or what they have been taught. A skeptic is said to be someone who questions knowledge, demanding clear definition, coherence, or proof. When I study for the exam, when I don't understand something, I question the definition, coherence and evidence to fully understand what I'm learning, does this make me a skeptic? Both across the natural sciences and ethics there may have been some people who can be considered skeptics because they question any knowledge claim that is presented to them. However, the great philosopher Plato once said that we know what we think we know. Therefore, skepticism challenges this statement, because we would not question something if we already know it to be true. An individual can be defined as skeptical when he continues to look for evidence to support the information he has questioned. The definition of a skeptic would differ in religion and the natural sciences, due to the influential figures who influenced both of these areas. There is a correlation between religion and natural science, sometimes when science fails, religion is the only answer. When something is inexplicable or beyond explanation there are only two choices: give up on finding the solution or believe that there is a Higher Being who controls the universe. The differences between the two areas of knowledge are conspicuous. The religion believes in the word of God such as the Bible, the Torah and the Quran. People who follow religion also follow what is said in the mentioned holy books, by faith. Natural science is the belief in observation, opinion, and the results of man-made experiments. Absolute truth in the human sciences is something that can be explained through reason and experience. Religion is a faith or belief that