“
The all-sustaining power of knowledge is captured in the simile
of knowledge being food for the soul. Various versions of it are met
with in the Graeco-Arabic tradition, “Like as the body grows through
food and becomes -fi
rm through exercise, thus the soul grows through
studying and becomes strong through patiently enduring (the hardships
of ) studying.” Diogenes, it seems, was supposed to have made this
statement. Someone else, apparently Theognis, is said to have already
played a variation on the theme: “Knowledge is not on the level of
food which suffi
ces to feed two or three but cannot feed many persons.
Rather, it is like light which enables many eyes to see all at the same
time.” Diogenes, or, according to another version, the Church Father,
Basilius, admonishes us to take the appropriate measures against harmful
knowledge in the same way in which we are used to protect ourselves
against harmful foods, because knowledge is the food of the soul.
According to Plato, the pleasure which the soul shares with the body is that
of food and drink, whereas its incorporeal pleasure is that of knowledge
and wisdom. For Pseudo-Apollonius of Tyana (Balînûs), proof of the
incorporeality of the soul lies in the fact that it does not partake of material
nourishment. “According to the Stoics,” he reports, “Socrates said that
the soul eats; however, its food is something that is not corporeal, since
the food of the soul is knowledge.”
Knowledge is also described by
Ibn Butlân as the thing that nourishes the intellect. It is for the intellect what food is for the body, since the two supplement each other and must
exist together in human beings. Ibn Taymîyah states that “the arrival of
knowledge in the heart is like the arrival of food in the body. The body
is aware of food and drink. In the same manner, the hearts are aware of
the sciences (-
ulûm) that establish themselves in them and which are their
food and drink.” In the popular conception, knowledge and books
have always been identifi
ed as spiritual food, down to the present day.
”
”
Franz Rosenthal (Knowledge Triumphant: The Concept of Knowledge in Medieval Islam (Brill Classics in Islam))