What does the Greek Seven Arts mean?

Logic, grammar, rhetoric, mathematics, geometry, astronomy and music are called the "seven arts" of the world. Plato, an ancient Greek philosopher, divided subjects into two categories: primary and advanced according to the principle of "exercising with gymnastics and cultivating the mind with music". Primary school physical education class includes games and several sports. In addition to music and dance in a narrow sense, music in primary school subjects also includes cultural subjects such as reading, writing and calculation. Advanced subjects mainly include arithmetic, geometry, music theory and astronomy.