Many of the things we do in the course of a day we don't do intentionally: blushing, sneezing, breathing, blinking, smiling—to name but a few. But we also do act intentionally, and often when we do we act for reasons. Whether we always act for reasons when we act intentionally is controversial. But at least the converse is generally accepted: when we act for reasons we always act intentionally. Necessarily, it seems. In this paper, I argue that acting intentionally is (...) not in all cases acting for a reason. Instead, intentional agency involves a specific kind of control. Having this kind of control makes it possible to modify one's action in the light of reasons. Intentional agency opens the possibility of acting in the light of reasons. I also explain why when we act with an intention we act for reasons. In the second part of the paper, I draw on these results to show that the dominant view of reasons to intend and the rationality of intentions should be rejected. (shrink)