The present day culture of Indonesia is an outcome of the interplay of age-old- traditions from the time of early migrants and the Western thought brought by Portuguese traders and Dutch colonists. The basic principles, which guide life include the concepts of mutual assistance or "gotong royong" and consultations or "musyawarah" to arrive at a consensus or "mufakat". Derived from rural life, this system is still very much in use in community life throughout the country. Though the legal system is based on the Old Dutch penal code, social life as well as the rites of passage is founded on customary or "adat" law, which differs from area to area. ''Adat'' law has been instrumental in maintaining gender equality in Indonesia.