Finally, strive to be as positive as you can be. Give up complaining and blaming, and look for the best in every situation. Not only will you attract other positive people into your life, you may be the beacon that inspires others to shift their attitudes, as well.

- Jack Canfield

You are what you think. If you focus on the negative, you will live it out. If you focus on the good and positive things in life, you will experience them.

The greatest gift you can give yourself is joy, not only because of the feeling that goes with it at the moment, but because of the magnificent experience it will draw to you. It will produce wonders in your life.
-Jack Boland 

"Don't be put off by people who know what is not possible. Do what needs to be done, and check to see if it was impossible only after you are done." - Paul Hawken