The goose that lays the golden eggs likes to lay where there are eggs already.

Kill not the goose that lays the golden eggs

When you remove a fish that small, you are removing the goose that lays the golden egg.

Don't kill the golden goose.

As the caterpillar chooses the fairest leaves to lay her eggs on, so the priest lays his curse on the fairest joys.

Television is a golden goose that lays scrambled eggs; and it is futile and probably fatal to beat it for not laying caviar. Anyway, more people like scrambled eggs than caviar.