Attempt easy tasks as if they were difficult, and difficult as if they were easy; in the one case that confidence may not fall asleep, in the other that it may not be dismayed.
I can say with confidence there has never been a man or a woman - not me, not Bill, nobody - more qualified than Hillary Clinton to serve as president of the United States of America.
My mother is an amazing woman. Not only did she manage the entire household, she noticed a gift in each of her kids and instilled confidence in all of us that that gift would take us wherever we wanted to go.
I have confidence that we can form this kind of national community.
Doubt can motivate you, so don't be afraid of it. Confidence and doubt are at two ends of the scale, and you need both. They balance each other out.