 What makes it the case that something counts as a form of cognitive success? For instance, why think that knowing the capital of Pakistan is a cognitive success, rather than just another cognitive state that an agent can occupy, like having 70% confidence that Islamabad is the capital of Pakistan? Not every cognitive state enjoys cognitive success. Knowing, understanding, mastering—these are cognitive successes. But being 70% confident in a proposition is not, in and of itself, a cognitive success, even if that state of confidence may be partly constitutive of an agent’s cognitive success when the agent holds it in the right circumstances and for the right reason. What makes the difference?