1: The Sciences (Knowledge) Of Human Beings And The Sciences (Knowledge) Of Angels


by Ibn Khaldun, 1377AD

We observe in ourselves through sound intuition the existence of three

The first of them is the world of sensual perception. We become aware of it
by means of the perception of the senses, which the animals share with us.
Then, we become aware of the ability to think which is a special quality of
human beings. We learn from it that the human soul exists. This knowledge is
necessitated by the fact that we have in us scientific perceptions which are above the
perceptions of the senses. They must thus be considered as another world, above the
world of the senses.

Then, we deduce (the existence of) a third world, above us, from the
influences that we find it leaves in our hearts, such as volition and an inclination
toward active motions. Thus, we know that there exists an agent there who directs us
toward those things from a world above our world. That world is the world of
spirits and angels. It contains essences that can be perceived because of the
existence of influences they exercise upon us, despite the gap between us and them.

Often, we may deduce (the existence of) that high spiritual world and the
essences it contains, from visions and things we had not been aware of while awake
but which we find in our sleep and which are brought to our attention in it and
which, if they are true (dreams), conform with actuality. We thus know that they are
true and come from the world of truth. “Confused dreams,” on the other hand, are
pictures of the imagination that are stored inside by perception and to which the
ability to think is applied, after (man) has retired from sense perception.22

We do not find any clearer proof than this for (the existence) of the spiritual
world. Thus, we have a general knowledge of it, but no particulars. The
metaphysicians make conjectures about details concerning the essences of the
spiritual world and their order. They call these essences “intellects.” However, none
of it is certain, because the conditions of logical argumentation as established in
logic do not apply to it. One of these conditions is that the propositions of the
argument must be primary and essential, but the spiritual essences are of an
unknown essentiality. Thus, logical argumentation cannot be applied to them. Our
only means of perceiving something of the details of these worlds are what we may
glean from matters of religious law, as explained and established by religious faith.

Of the (three) worlds, the one we can perceive best is the world of human
beings, since it is existential and attested by our corporeal and spiritual perceptions.

The world of the senses is shared by us with the animals, but the world of the
intellect and the spirits is shared by us with the angels, whose essences are of the
same kind as the essences of that world. They are essences free from corporeality
and matter, and they are pure intellect in which intellect, thinker, and the object of
thinking are one. It is, in a way, an essence the reality of which is perception and

The sciences (knowledge) of the (angels), thus, always agree by nature with
the things to be known. They can never have any defect. The knowledge of human
beings, on the other hand, is the attainment of the form of the thing to be known in
their essences, after it had not been there. It is all acquired. The essence in which the
forms of the things to be known are obtained, namely, the soul, is a material
substance 23 that gradually takes over the forms of existence with the help of the
forms of the things to be known that it obtains. Eventually, it reaches perfection,
and, through death, its existence fulfills itself as regards both its matter and its form.

By AksilTigre - Own work, CC BY-SA 4.0, https://commons.wikimedia.org/w/index.php?curid=36413192

Ibn Khaldun, by AksilTigre – Own work, CC BY-SA 4.0, https://commons.wikimedia.org/w/index.php?curid=36413192

The objects in the soul are subject to constant vacillation between negation
and assertion. One of the two is sought by means of some middle (term) to connect
the two extremes. When that is achieved and the object has become known, it must
be explained that there exists agreement (between knowledge and the thing known).
Such agreement may often be clarified by technical logical argumentation, but that is
from “behind the veil,” and it is not like the direct vision 23a that is found in
connection with the sciences (knowledge) of the angels.

The “veil” may be removed, and the agreement may, thus, be effected
through direct perceptive vision. It has been explained that human beings are
ignorant by nature, because vacillation affects their knowledge. They learn through
acquisition (of knowledge) and technique, because they obtain the objects they seek
by applying their ability to think according to technical rules. The removal of the
veil to which we have referred is achieved only through training in dhikr exercises 24
of which the best is prayer, which forbids sinful and evil actions-through abstinence
from all distracting food of consumption – of which the most important part 25 is
fasting – and through devoting oneself to God with all one’s powers.

“God taught man what he did not know.” 26

Excerpt from THE MUQADDIMAH Abd Ar Rahman bin Muhammed ibn Khaldun Translated by Franz Rosenthal

Ibn Khaldūn (/ˌɪbənxælˈdn/; Arabic: أبو زيد عبد الرحمن بن محمد بن خلدون الحضرمي‎‎, Abū Zayd ‘Abd ar-Raḥmān ibn Muḥammad ibn Khaldūn al-Ḥaḍramī; May 27, 1332 – March 19, 1406) was a North African Arab[7][8][9][10] Muslim historiographer and historian, regarded by some to be among the founding fathers of modern sociology,[n 1] historiography, demography,[n 1]and economics[11][n 2] and evolution biology among other subjects.

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