Word: 必 (bì)

乱麻必有头

luànmá bì yǒu tóu

a tangled mess of hemp must have an end

人必自侮，而后人侮

rén bì zì wǔ, ér hòurén wǔ

a person must first insult himself, and then others insult him

人有善愿，天必从之

rén yǒu shàn yuàn, tiān bì cóng zhī

if a person has a good wish, Heaven will surely grant it

匹夫无故获千金，必有非常之祸

pǐfū wúgù huò qiānjīn, bì yǒu fēicháng zhī huò

if a common man gets a thousand gold for no reason, there must be an extraordinary disaster

千里能相会，必是有缘人

qiānlǐ néng xiānghuì, bì shì yǒuyuán rén

if people can meet from a thousand li apart, they must be fated to be together

受人之托，必当终人之事

shòu rén zhī tuō, bì dāng zhōng rén zhī shì

entrusted by someone, you must see their matter through

受人滴水之恩，必当涌泉相报

shòu rén dīshuǐ zhī ēn, bì dāng yǒngquánxiāngbào

for a drop of water received, repay with a gushing spring

大屈必有大伸

dà qū bì yǒu dà shēn

great wronging will surely bring great stretching out

大才必有大用

dà cái bì yǒu dà yòng

great talent will surely have great use

好言不听，祸必临身

hǎo yán bù tīng, huò bì lín shēn

if good advice isn't heeded, disaster will surely fall on you

富家必有旧物

fùjiā bì yǒu jiùwù

a rich house must have old things

弓硬弦常断，人强祸必随

gōng yìng xián cháng duàn, rén qiáng huò bì suí

a stiff bow often snaps its string; a man too strong will meet disaster

敢开高价口，必有识货人

gǎn kāi gāojià kǒu, bì yǒu shíhuò rén

if one dares to name a high price, there must be someone who knows the goods

无故殷勤，必有一想

wúgù yīnqín, bì yǒu yì xiǎng

unprovoked attentiveness surely means there is something wanted

有功必赏，有罪必罚

yǒugōng bì shǎng, yǒuzuì bì fá

reward every merit, punish every offence

有得必有失

yǒu dé bì yǒushī

where there is gain there must be loss

有理不送礼，送礼必无理

yǒulǐ bú sònglǐ, sònglǐ bì wúlǐ

those in the right don't give gifts; those who give gifts must be in the wrong

有起必有落。

Yǒu qǐ bì yǒu luò.

What goes up must come down.

木无本必枯，水无源必竭

mù wú běn bì kū, shuǐ wú yuán bì jié

a tree without roots must wither, water without a source must run dry

楚虽三户,亡秦必楚

chǔ suī sānhù,wáng Qín bì chǔ

though Chu has only three households, it will be Chu that destroys Qin

此事必有隐情。

Cǐshì bì yǒu yǐnqíng.

There must be something at the back of this matter.

每个人都必有一死。

Měige rén dōu bì yǒu yì sǐ.

All men must die.

玩火者必自焚

wánhuǒzhě bì zìfén

those who play with fire will surely burn themselves

理直千人必往，心亏寸步难移

lǐ zhí qiān rén bì wǎng, xīnkuī cùnbùnányí

if reason is straight, you'll go among a thousand people; if the heart is guilty, you can hardly move an inch

登高必跌重

dēnggāo bì diē zhòng

the higher you climb, the harder you fall

瞒债必穷，瞒病必死

mán zhài bì qióng, mán bìng bì sǐ

hide a debt and you will surely be poor; hide an illness and you will surely die

礼多必有诈

lǐ duō bì yǒu zhà

too many courtesies must hide a trick

积善之家，必有余庆；积恶之家，必有余殃

jīshàn zhī jiā, bì yǒu Yúqìng; jī'è zhī jiā, bì yǒu yúyāng

a family that piles up good deeds will surely have blessings left over; a family that piles up evil will surely have misfortune left over

花开必落，月圆必缺

huā kāi bì luò, yuè yuán bì quē

flowers that bloom must fall, a full moon must wane

饥时过饱，必殒命

jī shí guò bǎo, bì yǔnmìng

eat too much when starving and you will surely die

骄兵必败，欺敌必亡

jiāobīngbìbài, qī dí bì wáng

an arrogant army must lose; underestimating the enemy means ruin