Although the tone of the university, especially that of the students, was pronouncedly, even enthusiastically, humanistic, and although Erfurt led the movement in Germany, and in its theological tendencies was supposedly "modern", nevertheless "it nowise showed a depreciation of the currently prevailing [ Scholastic ] system" (ibid.).Luther himself, in spite of an acquaintaince with some of the moving spirits of humanism, seems not to have been appreciably affected by it, lived on its outer fringe, and never qualified to enter its "poetic" circle.He himself alleges, as above stated, that the brutality of his home and school life drove him into the monastery.
Luther's sudden and unexpected entrance into the Augustinian monastery at Erfurt occurred 17 July, 1505.
The motives that prompted the step are various, conflicting, and the subject of considerable debate.
Oerger ("Vom jungen Luther", Erfurt, 1899, 27-41) has proved the existence of this friend, his name of Alexius or Alexis, his death by lightning or assassination, a mere legend, destitute of all historical verification.
Kostlin-Kawerau (I, 45) states that returning from his "Mansfeld home he was overtaken by a terrible storm, with an alarming lightning flash and thunderbolt. Anna, I will be a monk '." "The inner history of the change is far less easy to narrate.
In the opinion of many of his biographers, it was an expression of uncontrolled rage, an evident congenital inheritance transmitted to his oldest son, that compelled him to flee from Mohra, the family seat, to escape the penalty or odium of homicide.