Success Defined
Here is a difficult concept to define. What is ‘Success?’ It is defined as the accomplishment of an aim or purpose. If a goal is to get the garbage can to the curb to be emptied by the local sanitation department was accomplished, SUCCESS. Another definition is the attainment of popularity or profit. This may be the definition most think as being successful. We work our lives to meet this social definition, and maybe we attain it perhaps we do not.
Happiness
A lot of emphases is placed on the financial definition. Sure it is great to have stuff and money. Why do 
we want stuff and money? We believe it is the attainment of happiness and pleasure. If the goal is ultimately happiness. Be happy. If we can be happy every day then, SUCCESS. With a pleasant nature, we can work with happiness toward our other goals. As each material goal is achieved or not achieved through our happy actions, we are still successful.
Success is not the key to happiness. Happiness is the key to success.
Be well, Have Gratitude and Spread Goodwill
