 Book 2 begins by returning to the definition of education; the Athenian here tells us that education consists in training a child to feel pleasure and pain, and to love and hate, correctly, before he can understand the reason why (Laws 653B–C). Education in music and gymnastics is particularly crucial for the project of ethical education. The Athenian tells us that young children naturally desire to move and to make noise, and are naturally capable of taking pleasure in order in movement and sound (Laws 653D–654A); one explanation for the centrality of music and gymnastics in the educational program, then, could appeal to the role of music and gymnastics in training this capacity to perceive and take pleasure in  order.[11]  Book 2 focuses primarily on musical education and the standard of correctness in music; Book 7 returns to the topic of education in gymnastics, and lays out the rest of the educational program. These topics will be discussed further in section 7 of this article (Poetry and Education).