“If any man can convince me and bring home to me that which I do not think or act aright, gladly will I change; for I search after truth, by which man never yet was harmed. But he is harmed who abideth on still in his deception and ignorance.”<br><br>Marcus Aurelius - emperor of Rome and one of those inspired leaders you referred to - and a stoic philosopher. I think being a scientist is not enough, you need philosophy and aesthetics to develop a balanced viewpoint.