半畝方塘一鑒開，天光云影共徘徊。問渠那得清如許，為有源頭活水來。
人文科學

        · There lies a glassy oblong pool,| Where light and shade pursue their course. | How can it be so clear and cool? | For water fresh comes from its source.(Zhu Xi [1130-1200]: “Reflections on Books”)......（本文共 163 字）     [閱讀本文] >>