One thing that made the sublime so appealing to Wordsworth and others was how it stretched the imagination. As the philosopher Emily Brady writes in her 2013 book on the sublime: "A view running through several theories is that as the imagination (or more generally, the mind) is expanded, we also experience a sense of our ability to take in vastness or great power, thereby evoking a sense of our own powers." Or as one 18th Century writer put it, the mind derives "a noble pride" from encountering a "sense of immensity" and "entertains a lofty conception of its own capacity."