What are the common characteristics or virtues of leaders that sustain excellence?

Avoiding the emotions around climate change does not make scientists more credible because objectivity regarding our home planet is a lie.
What are the common characteristics or virtues of leaders that sustain excellence?
Avoiding the emotions around climate change does not make scientists more credible because objectivity regarding our home planet is a lie.
America has a revenge addiction problem.
The power of just-in-time learning.