In some instances, a formal vote may be necessary, but often groups can reach an informal consensus or accommodation through debate and compromise. These processes have the added benefit of building the trust necessary to resolve future problems. It teaches interest groups to negotiate with others, to compromise and to work within the constitutional system. By working to establish coalition, groups with differences learn how to argue peaceably, how to pursue their goals in a democratic manner, and ultimately how to live in a world of diversity. Democracy is not a set of revealed, unchanging truths but the mechanism by which, through the clash and compromise of ideas, individuals and institutions, the people can, however imperfectly, reach for truth.
Democracy is pragmatic.
Ideas and solutions to problems are not tested against a rigid ideology but tried in the real world where they can be argued over and changed, accepted or discarded. Self-government cannot protect against mistakes, end ethnic strife, or guarantee economic prosperity. It does, however, allow for the debate and examination that can identify mistakes, permit groups to meet and resolve differences, and offer opportunities for innovation and investment that are the engines of economic growth.