Answer:
The central idea is that each human being must act and think for himself, following his own convictions.
Step-by-step explanation:
In the text shown in the question above, the narrator states that human beings must be nonconformist, that is, not conform to what society offers and not act according to the majority. Each individual must think and act for himself, acting according to his own convictions, because not always following the steps of a majority will promote individual and collective progress. In this case, each human being must judge the situations according to their own concepts and act according to their own convictions.