Eusebius of Myndus was a 4th century philosopher, a distinguished Neoplatonist. He is described by Eunapius

Eunapius

Eunapius was a Greek sophist and historian of the 4th century. His principal surviving work is the Lives of the Sophists, a collection of the biographies of twenty-three philosophers and sophists.-Life:He was born at Sardis, AD 347...

 as one of the links in the "Golden Chain" of Neoplatonism

Neoplatonism

Neoplatonism , is the modern term for a school of religious and mystical philosophy that took shape in the 3rd century AD, based on the teachings of Plato and earlier Platonists, with its earliest contributor believed to be Plotinus, and his teacher Ammonius Saccas...

.

He was a pupil of Aedesius

Aedesius

Aedesius was a Neoplatonist philosopher and mystic born of a noble Cappadocian family.-Career:He migrated to Syria, attracted by the lectures of Iamblichus, of whom he became a follower. According to Eunapius, he differed from Iamblichus on certain points connected with theurgy and magic...

 of Pergamum

Pergamon

Pergamon , or Pergamum, was an ancient Greek city in modern-day Turkey, in Mysia, today located from the Aegean Sea on a promontory on the north side of the river Caicus , that became the capital of the Kingdom of Pergamon during the Hellenistic period, under the Attalid dynasty, 281–133 BC...

. He devoted himself principally to logic

Logic

In philosophy, Logic is the formal systematic study of the principles of valid inference and correct reasoning. Logic is used in most intellectual activities, but is studied primarily in the disciplines of philosophy, mathematics, semantics, and computer science...

 and ventured to criticize the magical and theurgic side of the doctrine. By this he exasperated the later Emperor Julian

Julian the Apostate

Julian "the Apostate" , commonly known as Julian, or also Julian the Philosopher, was Roman Emperor from 361 to 363 and a noted philosopher and Greek writer....

, who preferred the mysticism

Mysticism

Mysticism is the knowledge of, and especially the personal experience of, states of consciousness, i.e. levels of being, beyond normal human perception, including experience and even communion with a supreme being.-Classical origins:...

 of Maximus

Maximus of Ephesus

Maximus of Ephesus was a Neoplatonist philosopher. He is said to have come from a rich family, and exercised great influence over the emperor Julian, who was commended to him by Aedesius. He pandered to the emperor's love of magic and theurgy, and by judicious administration of the omens won a...

 and Chrysanthius

Chrysanthius

Chrysanthius of Sardis was a Greek philosopher of the 4th century AD who studied at the school of Iamblichus. He was one of the favorite pupils of Aedesius, and devoted himself mainly to the mystical side of Neoplatonism. The emperor Julian went to him by the advice of Aedesius, and subsequently...

.

Stobaeus

Stobaeus

Joannes Stobaeus , from Stobi in Macedonia, was the compiler of a valuable series of extracts from Greek authors. The work was originally divided into two volumes containing two books each...

collected a number of ethical dicta of one Eusebius, who may perhaps be identical with the Neoplatonist.