ethnic original values, since the values are ‘mothers’ (lokalitas ialah ibu manusia) and people are ‘fathers’ of existence (balita ialah bapak manusia) (Sumardjo 2003:22). The following are some philosophical notions which this school advocates: Adat For this school of thought, adat plays very important role. Adat is the main inspiration for ethnic philosophers, as it is the intellectual legacy which belongs to a particular ethnic group. Adat is inherited from an ethnic's forefathers to later generations of the ethnic group. Indonesians believe that adat is not a human creation, but the spirits and supernatural powers ruling the community. This adat is very different from what Englishmen call tradition, custom or convention today. Its meaning is not simply wider, but more particularly goes far deeper. It includes everything Englishmen call law nowadays; and it goes much further than law in determining the needs and the actions of individuals and the community. It ordains the ceremonies of marriage, birth and death, the times and the methods for sowing rice, building a house, praying for rain, and many other things. Economics, politics, philosophy and art all come within its sphere. Indeed, from one point of view, adat is simply a social expression of the community religion, in as much as it is not a human creation, and in its exercise men are still constantly watched over by the spirits and supernatural powers ruling community. Because the adat which regulates the entire life of the community is dominated by spirits and supernatural powers, that communal life is inevitably static and deeply conservative. Its roots lay in the obscurity of the past, when the ancestors laid down the adat once and for all, or as Minangkabau people say: It doesn't crack with the heat or rot in the rain. In such an environment the word 'old' has a special significance, denoting something venerable, sacred, powerful and full of wisdom (Alisjahbana 1961:13-14). Myths of Origin Among intellectual legacy which the adat inherited to Indonesians is a set of myths of origin of creation. The myths are sung (and only recently written) in important ceremonies held on special occasions of birth, death, marriage, harvest festival, and so on. The Dayak-Benuaq tribe of East Kalimantan, for example, has a set of myths known as Temputn. This Temputn tells myths of origin of universe, world and sky, human and animal creation, plants, water, fire, rain, death, ancestor origin, and