As marriages progress, the passion that may have characterized the early days tends to mellow into a deep bond of intimacy and commitment. Therefore, the relationship qualities that promote intimacy and commitment are most important to a long-lasting marriage. Strong communication, the ability to manage conflict constructively, shared experiences and values, and high levels of warmth and affection all contribute to successful marriages. In addition, financial stability, positive ties to the extended family, and positive role models in the families of both partners (rather than frequent divorces and marital acrimony) are associated with long-term marriages.