FIFTH ARTICLE [I, Q. 107, Art. 5]

Whether All the Angels Know What One Speaks to Another?

Objection 1: It would seem that all the angels know what one speaks

to another. For unequal local distance is the reason why all men do

not know what one man says to another. But in the angelic speech

local distance has no effect, as above explained (A. 4). Therefore

all the angels know what one speaks to another.

Obj. 2: Further, all the angels have the intellectual power in

common. So if the mental concept of one ordered to another is known

by one, it is for the same reason known by all.

Obj. 3: Further, enlightenment is a kind of speech. But the

enlightenment of one angel by another extends to all the angels,

because, as Dionysius says (Coel. Hier. xv): "Each one of the

heavenly beings communicates what he learns to the others." Therefore

the speech of one angel to another extends to all.

_On the contrary,_ One man can speak to another alone; much more can

this be the case among the angels.

_I answer that,_ As above explained (AA. 1, 2), the mental concept of

one angel can be perceived by another when the angel who possesses

the concept refers it by his will to another. Now a thing can be

ordered through some cause to one thing and not to another;

consequently the concept of one (angel) may be known by one and not

by another; and therefore an angel can perceive the speech of one

angel to another; whereas others do not, not through the obstacle of

local distance, but on account of the will so ordering, as explained

above.

From this appear the replies to the first and second objections.

Reply Obj. 3: Enlightenment is of those truths that emanate from the

first rule of truth, which is the principle common to all the angels;

and in that way all enlightenments are common to all. But speech may

be of something ordered to the principle of the created will, which

is proper to each angel; and in this way it is not necessary that

these speeches should be common to all.

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Summa Theologica, Part I (Prima Pars) From the Complete American Edition · 第 655 / 722 题