ABSTRACT
One high standard for knowledge often called upon by skeptics is the requirement of infallibility. Skeptics insist that it is more human to err than to know. A skeptic would approve of a college setting admission standards that no one could meet. Nevertheless, skeptics typically set standards that, they think, no one ever meets. Descartes suggested the possibility that there is an evil demon, or evil genius, who can put any thought at all into student's mind and mislead they on any subject whatsoever. A person who endorses the suggestion that no one has any knowledge is called a skeptic about knowledge. Many of the most famous arguments in the history of philosophy are skeptical about one form or other of knowledge.
