Or not. Or what is in the flourishing of all living things, and especially in our species of ape, is evil. That only what is called "good" is the accident of there being a boundary up against you to stop you; or the imposition of a boundary which will destroy or constrain your living too much.
Perhaps morality is just the playpen boundaries of enfeebled apes, playing amongst themselves in luxury, thinking they've overcome some aspect of their nature since they barely need to move around at all.