ABSTRACT
Ask a non-philosopher whether it’s rational to be moral, and she will likely think the answer is relatively clear: intuitively, what is moral is often at odds with what is rational. For example, although giving a dollar to a needy stranger would be a moral thing to do, the rational thing to do would be to keep it for yourself. Among professional philosophers, by contrast, the answer is not so obvious. Philosophers have subtle views of rationality and morality. Seldom, if ever, do they understand norms of rationality as straightforwardly implying that we single-mindedly pursue our own self-interest, narrowly construed, and seldom, if ever, do they understand norms of morality as straightforwardly implying that we should always help others, regardless of our circumstances.
