Paul Bloom in the Boston Review:
This reaction surprised me at first, but I’ve come to realize that taking a position against empathy is like announcing that you hate kittens—a statement so outlandish it can only be a joke. And so I’ve learned to clarify, to explain that I am not against morality, compassion, kindness, love, being a good neighbor, doing the right thing, and making the world a better place. My claim is actually the opposite: if you want to be good and do good, empathy is a poor guide.
The word “empathy” is used in many ways, but here I am adopting its most common meaning, which corresponds to what eighteenth-century philosophers such as Adam Smith called “sympathy.” It refers to the process of experiencing the world as others do, or at least as you think they do. To empathize with someone is to put yourself in her shoes, to feel her pain. Some researchers also use the term to encompass the more coldblooded process of assessing what other people are thinking, their motivations, their plans, what they believe. This is sometimes called “cognitive,” as opposed to “emotional,” empathy. I will follow this convention here, but we should keep in mind that the two are distinct—they emerge from different brain processes; you can have a lot of one and a little of the other—and that most of the discussion of the moral implications of empathy focuses on its emotional side.
More here.