"The quality of authors determines the quality of books. The quality of musicians determines the quality of songs. The quality of artists determines the quality of paintings. The quality of architects determines the quality of buildings. The quality of generals determines the quality of warriors. The quality of preachers determines the quality of sermons. The quality of scientists determines the quality of inventions. The quality of leaders determines the quality of followers. The quality of scholars determines the quality of lectures. The quality of teachers determines the quality of students. The quality of schools determines the quality of graduates. The quality of graduates determines the quality of nations. The quality of plants determines the quality of air. The quality of air determies the quality of animals.