It is not power that corrupts but fear. Fear of losing power corrupts those who wield it and fear of the scourge of power corrupts those who are subject to it.
...
Fearlessness may be a gift but perhaps more precious is the courage acquired through endeavour, courage that comes from cultivating the habit of refusing to let fear dictate one's actions, courage that could be described as 'grace under pressure' - grace which is renewed repeatedly in the face of harsh, unremitting pressure.

Daw Aung San Suu Kyi