Current discourse about higher education focuses on issues like government funding, student debt, and admissions diversity; however, increasing attention is being paid to issues of speech and politics in the university. Alongside a series of events at several institutions, calls for 'safe space' on campus have grown familiar. Yet the appropriateness of such spaces on campus is debated. In this article the notion of safety implied in calls for 'safe space' is clarified, and three reasons are suggested for supporting such safety pedagogically. A public reason is proposed, which relies on a normative interpretation of publicness as conjoint action. This substantive version of 'public' could be considered when assessing the institution's publicness, rather than typical elements of the university's nominal publicness (funding, government oversight, etc.). By embracing and ensuring safe space, universities could become sites of public full participation, thus fostering a re-recognition of higher education as a public good.