The opposite of virtues is vices. The opposite of temperance is indulgence; courage – cowardice; wisdom – folly; humility – arrogance, etc. The goal is to practice virtues as much as possible and minimize or eliminate vices. The Stoics believe that virtues are enough to make us happy while vices guarantee a tumultuous life. A caveat here though is that virtues are way harder to practice than vices. They need a lot of willpower whereas vices are as easy as indulging with the impulses. The key here is to practice virtues whenever a situation presents itself and to constantly check our desires and impulses to prevent vices. The Stoics regard virtues as the absolute good and vices as the absolute bad.