Make up the past with the present
Chinese idiom, Pinyin is R ó NGJ ī nzh ù g ǔ, which means to integrate ancient and modern knowledge. It's from the story of the Golden Lotus.
The origin of Idioms
Chen Ruyuan of the Ming Dynasty wrote in "the story of the Golden Lotus · Tansi": "it was once seen that the ancient wuche Rao was made by Chen Ruyuan, and the peanut and the jade Sujiao were made by Bingyu." It is also called "casting the present from the past".
Idiom usage
An example is Wang Shizhen's "chibeidutan · tanyier · cangming Caiji" in the Qing Dynasty: "to keep the truth, to take the essence, to take the ancestors, to cast the past and the present, to be the representative of the times."
Make up the past with the present
Eliminate the bad and retain the good - tài liè liú liáng
Death of Zhuge scares away shengzhongda - sǐ zhū gé xià zǒu shēng zhòng dá
continue to study even in old age - bái shǒu qióng jīng
Teaching is not always a teacher - jiào wú cháng shī