取之不尽,用之不竭

qǔ zhī bù jìn , yòng zhī bù jié

limitless supply (of)

inexhaustible

to take

zhī

(possessive particle, literary equivalent of 的[de5])

no; not so

jìn

to use up

,

yòng

to use; to make use of; to employ

zhī

(possessive particle, literary equivalent of 的[de5])

no; not so

jié

to exhaust