Diogenes of Oenoanda
) was an Epicurean Greek
from the 2nd century AD
who carved a summary of the philosophy of Epicurus
onto a portico
wall in the ancient city of Oenoanda
(modern day southwest Turkey
). The surviving fragments of the wall, which originally extended about 80 meters, form an important source of Epicurean philosophy.
The inscription sets out Epicurus' teachings on physics, epistemology, and ethics. It was originally about 25 000 words along and filled 260 square meters of wall space. Less than a third of it has been recovered.