It is a famous English proverb. From Roman allusion. Ancient Rome was originally a small city-state in Italy. In the 3rd century BC, Rome unified the entire Apennine Peninsula. In the 1st century BC, the city of Rome became the political, economic and cultural center of the Roman Empire that spanned Europe, Asia and Africa. In order to strengthen its rule, the Roman Empire built highways with Rome as the center and leading to all directions. According to historical records, the Romans built 80,000 kilometers of hard-surface roads. These avenues facilitated trade and cultural exchange within and outside the empire. Since the 8th century AD, Rome has become the center of Catholicism in Western Europe, with an endless stream of pilgrims from all over the world. It is said that at that time, if you started traveling from any road in the Italian peninsula or even Europe, as long as you kept walking, you could eventually reach Rome. What’s more interesting is that in order to facilitate the deployment of troops, the rulers of ancient Rome ordered large trees to be planted on both sides of the avenue to shield the marching soldiers from the hot sun. According to legend, the saying "all roads lead to Rome" was first said by the Roman Emperor Julian (Julian the Apostate, 331-363). Julian was the nephew of Constantine I (c. 280-337). He was a scholar, writer and general all in one. During his reign (360-363), he allowed freedom of religious belief and allowed the Jews to rebuild the temple in Jerusalem. He himself believed in paganism and was the only non-Christian emperor after Constantine. Therefore the church called him an "apostate". All roads lead to Rome, which means taking many approaches or having many choices. It is similar to the Chinese idiom that different roads lead to the same destination, or the saying that water flowing thousands of miles returns to the sea.