So far as I know, weeds aren’t capable of pleasure or pain, so yanking one out of the ground isn’t a grave moral transgression. Still, with weeds—more than with lamps or pencils or eyeglasses—we are approaching the realm of moral psychology, the realm of judgments about good and bad that have consequences for the way we treat other beings. And when the beings in question are sentient—human beings, for example—the stakes can be high.
