Final answer:
The shift in attitude is from imposition to acceptance of new beliefs after self-reflection and critical thinking, signifying an intellectual growth and willingness to change from within.
Step-by-step explanation:
The shift in attitude described in the passage is best illustrated as a transition from imposition to acceptance of new beliefs and viewpoints, involving a challenging process of self-reflection and critical thinking. The passage highlights the internal conflict individuals face when core beliefs they were comfortable with are challenged by new information or insights that reveal flaws or contradictions within those beliefs. Readers are prompted to consider whether they will cling to their old convictions for the sake of comfort and familiarity, or embrace the new, more defensible positions, despite potential discomfort or the fear of change.
The shift signifies an intellectual growth where one is 'forced' by self-realization to accept the change internally, rather than by external pressure, emphasizing the importance of informed decision-making and evolution of thought.