摘要：The problem of human language, arithmetic, and art was studied in the context of the definition ＂civilization＂ on the basis of Darwin＇s theory. The author defines civilization as ＂survival of the weak＂. The author supposes that language and art were invented by the men to describe their heroic deeds for the women in order to be selected by them for reproduction. In other words, language and art became a selection criterions together with beauty and presents. Finally, the author defines language and art.

摘要：The purpose of the paper civilization is to provide a is to show violence as the integral property of any live being. One of the aims of controlled portion of violence to the community members. If the portions are too small then uncontrolled violence appears in different forms of criminality and self-destruction. In countries without virtual violence the terrorism and ＂suicide＂ bombers are born. For the male the aim of violence is a feeling of victory. In the nature only the winner has the right to reproduction. In a civilized society each male has the right to reproduction and the necessity to feel himself as a winner. Survival means right for reproduction. Civilization has turned the bite between men into a kiss between men （men winner） and women （men defeated）, the kick between men--into a caress between men （men winner） and women （men defeated） and, finally, the violence between men into love/eros between men （men winner） and women （men vanquished） and violence between men into homosexuality/eros between men winner and men vanquished. In the civilization, the male is winner and the female simulates the defeated male, homo or animals. We can define eros as a substitute of violence in civilization like the metamorphose of violence.