Qīnghuá Dàxué de xiào xùn shì zìqiángbùxī, hòudézàiwù.
Tsinghua University's motto is 'Strive ceaselessly; bear all things with great virtue.'
Tips
history
From the 《周易·坤》 (I Ching, Kun hexagram): 君子以厚德载物 - 'The noble person, through deep virtue, carries all things.' Pairs with 天行健,君子以自强不息 from the Qian hexagram.
culture
Famously the second half of Tsinghua University's motto, written by 梁启超 in 1914. Highly literary and dignified, common in calligraphy, mottos, and formal speeches.