实践是检验真理的唯一标准

shí jiàn shì jiǎn yàn zhēn lǐ de wéi yī biāo zhǔn

Actual practice is the sole criterion for judging truth (item from Deng Xiaoping theory, from 1978)

shí

real

jiàn

to fulfill (a promise)

shì

to be (followed by substantives only)

jiǎn

to check

yàn

variant of 驗|验[yan4]

zhēn

really

texture

de

of; ~'s (possessive particle)

wéi

only

one

biāo

mark

zhǔn

accurate