圮地则行 (圮地則行) pǐ dì zé xíng

pǐ dì zé xíng phrase on difficult ground, keep moving
Domain: Literary Chinese 文言文
Notes: Quote: from the Warring States period text 孫子兵法 “Art of War” by Sunzi, section 11 (Amies 2021 tr.; see also tr. by Giles 1910, p. 120)