This document discusses the relationship between critical and creative thinking. It argues that they are interrelated and both necessary for achieving intellectual excellence. Critical thinking involves assessing and evaluating ideas to improve them, while creative thinking focuses on generating new ideas and solutions. True critical thinking must have a creative output for proposing improvements, and creative thinking requires critical standards to evaluate ideas. Both critical and creative faculties are developed through questioning, problem-solving, and constructing understanding for oneself. Famous thinkers like Newton, Darwin and Einstein all demonstrated this interplay between critical and creative thinking in their work.