Detail of Pride through the Seven Deadly Sins together with Four final Things by Hieronymous Bosch, c. 1500 Vainglory/Vanity Vainglory (Latin, vanagloria) is unjustified boasting. Pope Gregory viewed it as a kind of pride, so he folded vainglory into pride for their set of sins. Based on Thomas Aquinas, it’s the progenitor of envy. The …