Warren G. Bennis
The leader has a clear idea of what he wants to do -- professionally and personally -- and the strength to persist in the face of setbacks, even failures.
Every leader needs to have experienced and grown through following -- learning to be dedicated, observant, capable of working with and learning from others, never servile, always truthful. Having located these qualities in himself, he can encourage them in others.
To become a leader, then, you must become yourself, become the maker of your own life.
The leader wonders about everything, wants to learn as much as he can, is willing to take risks, experiment, try new things. He does not worry about failure, but embraces errors, knowing he will learn from them.