You’ve got to be passionate.
Not only for yourself but for your teammates—those you lead. Few things are more demotivating than leaders who are bored with their own lives and jobs. If the CEO of a company doesn’t care, why should anybody else within the company care? The best leaders are those who are passionate about what they do—they believe in what they’re trying to build or accomplish, and they have fun while doing it.
This makes everyone else want to join the ride!