This document discusses the importance of critical thinking skills for success at Oxford and Cambridge universities. It provides definitions of critical thinking as an intellectually disciplined process of analyzing and evaluating information. A key aspect is avoiding being misdirected by assumptions and considering problems from multiple perspectives. The document uses examples to illustrate critical thinking, such as analyzing the reliability of different statements about science and health. It also discusses why misinformation exists and the importance of critically evaluating all sources of information.