1. Pride: The young men display an excessive sense of self-importance and arrogance, believing themselves to be superior to others. This is evident in their condescending attitudes towards the elderly and in their willingness to exploit and harm others for their own personal gain.
2. Greed: The young men are driven by insatiable desires for wealth and material possessions. They are willing to engage in dishonest and unethical behavior, including theft and deceit, in order to satisfy their greed.
3. Lust: The young men exhibit unrestrained sexual desires and are willing to engage in immoral acts, including adultery and rape, to satisfy their lustful urges.
4. Envy: The young men are consumed by a sense of envy towards those who are more successful and fortunate than they are. This envy leads them to harbor resentment and hostility towards others and to seek ways to bring them down.
5. Treachery: The young men are deceitful and untrustworthy, willing to betray and deceive others for their own benefit. They are portrayed as being cunning and manipulative, using their intelligence and charm to exploit others' vulnerabilities.
6. Violence: The young men are prone to violence and bloodshed, willing to use force and aggression to achieve their goals. They are not hesitant to inflict pain and suffering on others and take pleasure in violence.
7. Lack of compassion: The young men are characterized by a complete lack of compassion or sympathy for others. They are incapable of understanding or caring about the suffering and pain they cause to others.
Together, these abstract qualities portray the evil young men in The Canterbury Tales as depraved and morally corrupt individuals who are driven by their own selfish desires and devoid of any sense of empathy or concern for others.