A scholar says: 'Paul's lists of vices and virtues in Galatians 5 use a form that was common in Greek and Roman moral teaching.' Agree or disagree?

Agree. Lists of vices and virtues were a common teaching tool in the Greek and Roman world, and Paul used the form. His "works of the flesh" and "fruit of the Spirit" (Galatians 5:19-23) are fairly conventional lists, with his own additions: idolatry, the kingdom of God, the law, the Spirit, and belonging to Christ.