So when it comes to my imaginary genetically engineered child, I would put in some anger, but not too much, and I would make sure to add plenty of intelligence, concern for others, and self-control. I would be wary of removing anger altogether, but I would ensure that it could be modified, shaped, directed, and overridden by rational deliberation; that, at most, it could be a reliable and useful servant—but never a master. That’s how we should think about empathy.
