取之不尽，用之不竭 (取之不盡，用之不竭) qǔ zhī bùjìn, yòng zhī bù jié

qǔ zhī bùjìn, yòng zhī bù jié phrase limitless supply (of); inexhaustible
Domain: Modern Chinese 现代汉语
Notes: (CC-CEDICT '取之不盡，用之不竭')