We often look up to experts, but we should not be uncritical. To be an "expert" sometimes is to possess a deep understanding and mastery of a specific subject, which often brings confidence and professional success. However, experts can sometimes be overconfident about their knowledge, potentially unaware of the gaps in their understanding. The key takeaway is that true expertise also involves recognizing and acknowledging what one does not know, maintaining a mindset geared towards continuous learning.