"Your level of optimism is determined by how you explain things to yourself.  Think positively." -– Brian Tracy  

"You become what you affirm; positively affirm your greatness, genius and fullest potential." -– Mark Victor Hansen  

"If your sunshine wants far outstrip your cold morning desire, have a talk with yourself.  Then have a lot more talks with yourself. Convince number one that you can succeed--and you will succeed. If you don't believe in you, why should anyone else?" -– Tom Hopkins