jìn
取之不尽
qǔ zhī bù jìn
inexhaustible; endless supply
知无不言，言无不尽
zhī wú bù yán, yán wú bù jìn
say all you know and say it without reserve; speak frankly and fully
想尽方法节约资财。
xiǎng jìn fāng fǎ jié yuē zī cái
try every possible way to save money and resources