What is the origin of the idiom "kill the goose that lays the golden egg" and when to use it?

The idiom "kill the goose that lays the golden egg" has its origins in one of Aesop's fables, where a farmer becomes greedy and kills the goose that lays golden eggs, only to find that there are no more eggs inside. The moral of the story is that greed can lead to one's downfall and that it is important to not destroy a valuable resource in pursuit of short-term gains. The phrase is now used in a more figurative sense to describe situations where someone is undermining or destroying a valuable asset or resource that is providing them with benefits over time. The idiom is often used as a warning to encourage someone to be more careful and to not sacrifice long-term gains for short-term benefits.