Oxford University is the highest institution with the upper-class culture, the rich collection of books in the large library, the beautiful museum collection, the ancient architecture, the excellent human environment and natural scenery, the elegant and strong students, the open and inclusive attitude and so on. But these upper cultures do not exclude lower Ribas, such as street homeless people on campus, bikes locked in railings, and narrow streets that crash into the rear-view mirrors of vehicles parked on the side of the road and flee. It is no longer the tip of the ivory tower, no dust, and the world is organically combined with the world. The students are exposed to the rich soil of various nutrients, and many British prime ministers and scientists have been born.