国之大事 (國之大事) guó zhī dà shì

guó zhī dà shì phrase of vital importance to the state
Domain: Literary Chinese 文言文
Notes: Quote: from the Warring States period text 孫子兵法 “Art of War” by Sunzi, section 1 (Amies 2021 tr.; see also tr. by Giles 1910, p. 1)