literally 'you want the horse to be good, but you also want it not to eat grass'; used to describe someone who expects high performance or results without being willing to pay the necessary cost or effort

Literally "you expect the horse to run but don't want to let it eat grass"; used to describe someone who wants results without being willing to pay the necessary price or provide the necessary resources.

to let cattle out to graze; used to describe giving someone freedom or leaving them unsupervised to do as they wish