 Another reason why cognition is an important quality is that it is not necessarily a defect whereas the other qualities are always defects. The defects fall into 3 groups: i) attraction (rāga), ii) aversion (dveṣa) and iii) illusion (moha) [NS 4.1.3]. Among the first group we find love, selfishness and greed. The second group includes anger, jealousy, envy, malice and resentment. The Third group encompasses error, suspicion, pride and negligence. These groupings show that, according to the Nyāya-Vaiśeṣika account, there are no positive emotions. Even love, which is regarded as a positive emotion in many cultures, is ultimately a defect because all emotions lead to attachment and error.