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 arithmetic.

Advanced subjects mainly include arithmetic, geometry, music theory and astronomy.

Plato thinks that these subjects are for training students' intelligence, not for practical application. The school of wise men in ancient Greece focused on teaching practical subjects, mainly rhetoric and dialectics (logic). This discipline, which was founded in ancient Greece, was later introduced to Rome and developed.