This chapter explores a so-far neglected way of avoiding the bads of loneliness: by learning to value solitude, where that is understood as a state of ‘keeping oneself company’, as J. David Velleman puts it. Unlike loneliness, solitude need not involve any deprivation, whether subjective or objective. This chapter considers the various goods to which solitude is constitutive or instrumental, with a focus on the promise that proper valuing of solitude holds for combating loneliness. The overall argument is this: If loneliness significantly detracts from individual wellbeing, and if the ability to value solitude protects against loneliness, then such an ability is obviously valuable to human flourishing. If, further, loneliness raises concerns of justice, then supporting people’s ability to value solitude is a way to implement a desideratum of justice. Individuals can cultivate their ability to value solitude, an ability that others can promote or hinder.