破釜沉舟 (pò fǔ chén zhōu, lit: "break the pots and sink the ships") based on a historical account of the general Xiang Yu
瓜田李下" (guātián lǐxià, lit. "melon field, beneath the plums") "Don't adjust your shoes in a melon field and don't tidy your hat under the plum trees"
(瓜田不納履，李下不整冠, gūatián bù nà lǚ, lǐ xià bù zhěng guān)
言而無信 (yán ér wú xìn, lit: "speaking, yet without trust") (from Analects) 言不由衷 (yán bù yóu zhōng, lit: "speak not from the bosom")
冰山一角 (bīng shān yī jiǎo, lit: "one corner of an ice mountain") translation of the expression "tip of the iceberg" rare example of a 20th century chéngyu. 火中取栗 (huǒ zhōng qǔ lì, lit: "extracting chestnuts from the fire")
