Philosophy is like wild grapes, growing sweetly in free inquiry. With the auspicious light of modern thinking, Xiao Fei shuttled between the Athens square and the academy, turning Heidegger's "existence", Freud's "eros" and Rawls's "justice" into children's witty words, allowing difficult philosophical thoughts to shine freshly in cross-time and space dialogues. This is not a serious philosophy class, but a warm adventure about thinking itself - when we ask questions bravely like children, our thoughts will break free from the constraints of time and space like wild grapevines, and bear fruits full of surprise and kindness in the sunshine of dialogue.