無奸不商

all businessmen are evil (idiom)

no; not so / (bound form) not; un-

Shang Dynasty (c. 1600-1046 BC) / surname Shang

commerce / merchant / dealer / to consult / 2nd note in pentatonic scale / quotient (as in 智商[zhi4 shang1], intelligence quotient)

wicked / crafty / traitor / variant of 姦|奸[jian1]

to fornicate / to defile / adultery / rape

not to have / no / none / not / to lack / un- / -less