Believe in yourself! Have faith in your abilities! Without a humble but reasonable confidence in your own powers you cannot be successful or happy.
Norman Vincent Peale
Determine that the thing can and shall be done, and then we shall find the way.
Every action you take is a vote for the type of person you whish to become. No single instance will transform your beliefs, but as the votes build up, so does the evidence of your new identity.
Promise me you’ll always remember you are braver than you believe, stronger than you seem and smarter than you think.
A. A. Milne
If you believe it will work out, you’ll see opportunities. If you believe it won’t, you will see obstacles.
Believe you can and you’re halfway there.
One person with a belief is equal to a force of 99 who have only interests.
John Stuart Mill