Today is May 18, 518, Wǒ yào fā! Sounds like an auspicious day to you, doesn’t it? In daily life, we are surrounded by numbers and inevitably deal with them every day in digital world. Numbers are meant to be calculated. They are neither good nor bad. Some numbers can be determined according to personal preferences. With the development of language and culture, people are constantly enriching connotation of numbers to express more ideas, especially 8 in Chinese.