"You can't think your way into acting positively, but you can act your way into thinking positively." -– Nido Qubein  

"Act the way you'd like to be and soon you'll be the way you act." -- George W. Crane  

"If you envy successful people, you create a negative force field of attraction that repels you from ever doing the things that you need to do to be successful.  If you admire successful people, you create a positive force field of attraction that draws you toward becoming more and more like the kinds of people that you want to be like." -– Brian Tracy  

"Imitate until you emulate; match and surpass those who launched you.  It's the highest form of thankfulness." -– Mark Victor Hansen