Whether an aureole is due to doctors?

Objections

Objection 1 : It would seem that an aureole is not due to doctors. For every reward to be had in the life to come will correspond to some act of virtue. But preaching or teaching is not the act of a virtue. Therefore an aureole is not due to teaching or preaching.
Objection 2 : Further, teaching and preaching are the result of studying and being taught. Now the things that are rewarded in the future life are not acquired by a man's study, since we merit not by our natural and acquired gifts. Therefore no aureole will be merited in the future life for teaching and preaching.
Objection 3 : Further, exaltation in the life to come corresponds to humiliation in the present life, because "he that humbleth himself shall be exalted" (Mt. 23:12). But there is no humiliation in teaching and preaching, in fact they are occasions of pride; for a gloss on Mt. 4:5, "Then the devil took Him up," says that "the devil deceives many who are puffed up with the honor of the master's chair." Therefore it would seem that an aureole is not due to preaching and teaching.