早知今日，悔不当初 (早知今日，悔不當初) zǎo zhī jīn rì, huǐ bù dāng chū

zǎo zhī jīn rì, huǐ bù dāng chū phrase It is too late to ever say, “If only I had known.”
Domain: Buddhism 佛教 , Subdomain: Fo Guang Shan
Notes: (Glossary of Humanistic Buddhism)