Knowledge is power only when put to use - and then only when the use made of it is constructive.
Think you are weak, think you lack what it takes, think you will lose, think you are second class - think this way and you are doomed to mediocrity.
Those who believe they can move mountains, do!
When you help others feel important, you help yourself feel important too.
To think confidently, act confidently... Act the way you want to feel.
How much we can do depends on how much we think we can do. When you really believe you can do more, your mind thinks creatively and shows you the way.