1 lit. like a three-meter high monk, you can't rub his head (idiom)
2 fig. at a total loss
三人行，必有我师
sān rén xíng , bì yǒu wǒ shī
1 lit. if three walk together, one can be my teacher (idiom, from the Analects of Confucius)
2 you have sth to learn from everyone
三个和尚没水喝
sān gè hé shang méi shuǐ hē
1 lit. three monks have no water to drink (idiom)
2 fig. everybody's business is nobody's business
3 (If there is one monk, he will fetch water for himself. If there are two, they will fetch water together. But if there are three or more, none will take it upon himself to fetch water.)
二虎相斗，必有一伤
èr hǔ xiāng dòu , bì yǒu yī shāng
1 lit. when two tigers fight, one is sure to be wounded (idiom)
2 fig. if it comes to a fight, someone will get hurt
人无远虑，必有近忧
rén wú yuǎn lu:4 , bì yǒu jìn yōu
1 He who gives no thought to far-flung problems soon finds suffering nearby (idiom, from Analects).
2 Smug concentration on the here and now will lead to future sorrow.
做一天和尚撞一天钟
zuò yī tiān hé shang zhuàng yī tiān zhōng
1 lit. as a monk for today, toll today's bell (idiom)
2 fig. to do one's job mechanically
3 to hold a position passively
两虎相争，必有一伤
liǎng hǔ xiāng zhēng , bì yǒu yī shāng
1 if two tigers fight, one will get injured (idiom)
2 if you start a war, someone is bound to get hurt
两虎相斗，必有一伤
liǎng hǔ xiāng dòu , bì yǒu yī shāng
1 when two tigers fight, one will get injured (idiom)
2 if it comes to a fight, someone will get hurt.
分久必合，合久必分
fēn jiǔ bì hé , hé jiǔ bì fēn
1 lit. that which is long divided must unify, and that which is long unified must divide (idiom, from 三國演義|三国演义[Sān guó Yǎn yì])
2 fig. things are constantly changing
分秒必争
fēn miǎo bì zhēng
1 seize every minute and second (idiom); not a minute to lose