Volunteer is a recognized the sacrifice of the people. Cooperation cooperation in making the benefits to firms to help reduce problems in social life as a parent.
Volunteering is the mentality of people who recognize the selfless cooperation in contributing to the common good. This reduces problems in society as a principle livelihood.
Volunteer spirit is the mind of those who know the sacrifice, cooperation, together, in part for the consolidation. Eliminates the problem in society as a principle of life.