Full Idea
Good itself as taken in by mind is one truth among others, and truth itself as goal of mind's activity is one good among others.
Gist of Idea
For the mind Good is one truth among many, and Truth is one good among many
Source
Thomas Aquinas (Quaestiones Disputatae de Malo [1271], Q6.reply)
Book Reference
Aquinas,Thomas: 'Selected Philosophical Writings', ed/tr. McDermott,Timothy [OUP 1993], p.177