Garrett Cullity

According to "the argument from discernment", sympathetic motivation is morally faulty, because it is morally undiscriminating. Sympathy can incline you to do the right thing, but it can also incline you to do the wrong thing. And if so, it is no better as a reason for doing something than any other morally arbitrary consideration. The only truly morally good form of motivation--because the only morally non-arbitrary one--involves treating an action's rightness as your reason for performing it. This paper attacks the argument from discernment and argues against its conclusion

Morality, it is commonly argued, cannot be extreme in the demands it makes of us, because “ought” implies “can”, and normal human psychology places limits on the extent to which most of us are capable of devoting our lives to the service of others. To evaluate this argument, we need to distinguish different uses of “ought” and “can”. Having distinguished these uses, we find that there is more than one defensible version of the principle that “ought” implies “can”. However, these distinctions can also be deployed to show that the attempt to argue from this principle to the conclusion that morality cannot be extremely demanding fails.