[Antoninus]

He is also known as Julian the Philosopher.

That is a more modern epithet. What is perhaps most interesting about Julian's reign is how he attempted to reform paganism to adopt certain aspects of Christianity which he felt were attractive to the common people. These included an emphasis on caring for the poor and a willingness of the pagan priesthood to die for their beliefs.

Neither of these reforms were especially popular among the remaining pagans of the Empire.

[Williams]

Hes considered a very noble figure except for his energetic persecution of christians.