To exist and develop, people need various skills, of which is language skill because it is not only means of communication and thinking, but also tool of psychological, cultural, empirical storage, helping people transfer the skill of reflecting reality in detail, directly, sentimentally to abstractly, indirectly and physically. For each individual, language skill both helps to establish specific competence in language and to create instrumental competence for general psychological activities (through and via language by which high-classed psychological functions are established and strengthened).