- Is the angel's intellect sometimes in potentiality, and sometimes in act?
- Can the angel understand many things at the same time?
- Is the angel's knowledge discursive?
- Does he understand by composing and dividing?
- Can there be error in the angel's intellect?
- Can his knowledge be styled as morning and evening?
- Are the morning and evening knowledge the same, or do they differ?
"It is because the contemporary alternatives seem so one-sided and are not more evidently solutions to the problems which Thomas faced, and partly solved, that we return to him and to the tradition of theology and philosophy in which his Summa Theologiae appears: theology as the science of the first principle and this as the total knowledge of reality in its unity." -- Wayne J. Hankey, God in Himself (Oxford University Press, 1987), p.159.