Self-improvement never breathes
From China Digital Space
zìqiáng bùxī 自强不吸
Air pollution in Beijing hit a record high in January 2013, with PM2.5 levels far exceeding the U.S. embassy's maximum reading of 500. Health officials later said the city's smog was "worse than SARS," since it is unescapable.
Netizens began to lament that "self-improvement never breathes," a pun on the chengyu "self-improvement never ends." Some take the next step, turning the Tsinghua University motto into a joke about air pollution: thus, "self-improvement never ends, strong morals carry heavy loads (zìqiáng bùxī, hòudé zài wù 自强不息，厚德载物) becomes "self-improvement never breathes, strong morals carry heavy smog (zìqiáng bùxī, hòudé zài wù 自强不吸，厚德载雾). (The official English version of Tsinghua's motto is "Self-Discipline and Social Commitment.") These two phrases are often used in reverse order (厚德载雾，自强不吸).
Jiubeizhongdelanlanfenqing (@酒杯中的滥滥风情): I heard again that the people of Beijing's morals are so strong they carry smog, and that their self-improvement never breathes. How I admire this.
又闻北京人民德厚载雾，自强不吸，深感佩服 (December 3, 2015) [Chinese]