Full Idea
If we are not free to will in any way, but are compelled, everything that makes up ethics vanishes: pondering action, exhorting, commanding, punishing, praising, condemning.
Gist of Idea
Without free will not only is ethical action meaningless, but also planning, commanding, praising and blaming
Source
Thomas Aquinas (Quaestiones Disputatae de Malo [1271], Q6.reply)
Book Reference
Aquinas,Thomas: 'Selected Philosophical Writings', ed/tr. McDermott,Timothy [OUP 1993], p.176
A Reaction
If doesn't require some magical 'free will' to avoid compulsions. All that is needed is freedom to enact your own willing, rather than someone else's.