Nasreddin Hodja has been a symbol of humor and critical thinking that is the basis of science for approximately eight hundred years. In one sense, Nasreddin Hodja, a wise sage of Turkish world, has educated many followers at his wisdom school for centuries. The problems and secrets of life can be solved by humor and critical thinking. They create and nourish each other. Analyzing life in reverse and creating original questions and answers is the foundation of Nasreddin Hodja School. All aspects of life constitute the subject of Nasreddin Hodja anecdotes. While the great Sufis such as Yunus Emre and Mevlana being Hodja's contemporaries symbolize the heart of Anatolian people, Nasreddin Hodja is symbol of the mind. The harmony of mind and soul constitutes Turkish folk philosophy. The way of wisdom is opened by this harmony.-In short, the aim of this article is to study the harmony of humor and critical thinking/ heart and mind of Turkish people, using the memory of Nasreddin Hodja anecdotes.