- 古今中外 gǔjīnzhōngwài at all times and in all places(idiom) from ancient to modern times and from China to foreign countries; throughout history and everywhere in the world
- 古今图书集成 gǔjīntúshūjíchéng Gujin Tushu JichengThe largest Chinese encyclopedia ever published, compiled during the Qing dynasty under Emperor Kangxi and Emperor Yongzheng; also known in English as the 'Imperial Encyclopaedia' or 'Complete Collection of Illustrations and Writings from the Earliest to Current Times'
- 古今奇观 gǔjīnqíguān unheard-of story(literary variant) marvelous sights and stories throughout the ages; a Ming Dynasty collection of short stories also known by a similar title
- 古今小说 gǔjīnxiǎoshuō Stories Old and NewA collection of late Ming vernacular short stories compiled by [[冯梦龙|馮夢龍|feng2 meng4 long2]] and published in 1620; also known as [[喻世明言|喻世明言|yu4 shi4 ming2 yan2]].
- 古今韵会 gǔjīnyùnhuì Collection of Rhymes Old and NewA classic Chinese phonological dictionary or rhyme book from the Yuan Dynasty, now largely lost and known primarily through its later abridged version
- 古今韵会举要 gǔjīnyùnhuìjǔyào Summary of the Collection of Rhymes Old and NewThe Yuan dynasty phonological dictionary, which is a supplemented version of the lost earlier work [[古今韵会|古今韻會|gu3 jin1 yun4 hui4]]
- 知古今儿 zhīgǔjīnr know-it-alla person with extensive knowledge of history and general information; someone who knows everything
- 博览古今 bólǎngǔjīn well-readto have read extensively through history and modern times; to be widely read in both ancient and modern literature
- 贻范古今 yífàngǔjīn to leave an example for all generationsto leave behind a model or example for both ancient and modern times; to set a lasting example for all generations
- 古今事文类聚 gǔjīnshìwénlèijù Gujin Shiwen LeijuComprehensive collection of facts and literature from ancient and modern times, an expanded Song Dynasty encyclopedia compiled by Zhu Mu