Zhu Xi is an epitomizer of the Philosophy of Sung Dynasty.However,while his packing up and explaining the thought of philosophy,his soul sank deeply into freedom.When he was asserting the heavenly principles,and making Gewuqiongli（means study anything and grasp their regulations）,when he was walking outward to enjoy the bright spring,and when he was going after the realm of life,he always showed a kind of thirst for freedom.