What do the terms ‘personal humility’ and ‘professional will’ mean to you in the context of personal or organizational “excellence?”

In the article Level 5 Leadership, Collins identifies Level 5 Leadership as “a paradoxical combination of personal humility plus professional will.” What do the terms ‘personal humility’ and ‘professional will’ mean to you in the context of personal or organizational “excellence?” Have you ever experienced these qualities either separately or in combination in your work? Paint a picture of the situation. In your career and life thus far, have you been more fox or hedgehog? How do you know?