I believe that the most fitting answer for this question would be Victor's curiosity and thirst for knowledge. Although this is typically seen as a positive characteristic, it ends up consuming Victor and contributing to his downfall. It leads to him creating his monster, which ultimately destroys him in the end. Hope this helps.
Predicate pronoun
A predicate pronoun is any pronoun that is part of the predicate.
A predicate is the part of a sentence that includes the verb and the words following it that relate to that verb.
Examples:
I will call him .
The teacher gave us a history assignment.
Mother made lunch for them .
A sentence may have more than one predicate; for example:
Mother made lunch for them and set it on the picnic table.
A subjective pronoun can be part of a predicate when it is the subject of a clause,; for example:
Mary brought a cake she made for the party .
A subjective pronoun is also used as a subject complement when it follows a linking verb; for example:
The leaders right now are he and I .
Brutus' tragic flaw of idealism contributes to his downfall because he was gullible enough to be convinced by Cassius and Antony that they were going to murder Julius Caesar for Rome's development and goodwill. He was blinded by that idealism and believed that these were their true intentions for inviting him in the murder, thus, making him involved greatly and made him feel guilty - leading him to suicide.
