Man is the measure of all things Instrumental values are easiest to grasp.
人是万物的尺度工具价值最容易掌握。
经济学人-科技
One little-regarded but important example of instrumental value is the transport of Old World earthworms to North America, parts of which were left worm-free after the last ice age.
Instrumental value (or extrinsic value, contributory value) is the value of objects, both physical objects and abstract objects, not as ends-in-themselves, but as means of achieving something else. It is often contrasted with items of intrinsic value. It is studied in the field of value theory.