Though Aristotle wrote a treatise On Education, this only survives through fragments that have come down to us. We thus know of his philosophy of education primarily through brief passages in other works. Aristotle considered nature, habit and reason to be three equally important forces to be cultivated in education. Thus, for example, he considered repetition to be a key tool to develop good habits. The teacher was to lead the student systematically; this differs, for example, from Socrates' emphasis on questioning his listeners to bring out their own ideas (though the comparison is perhaps unfair since Socrates was dealing with adults).
Aristotle placed great emphasis on balancing the theoretical and practical aspects of subjects taught. Subjects he explicitly mentions as being important included reading, writing and mathematics; music; physical education; literature and history; and a wide range of sciences. He also mentioned the importance of play.
One of education's primary missions for Aristotle, perhaps its most important, was to produce good and virtuous citizens for the polis. All who have meditated on the art of governing mankind have been convinced that the fate of empires depends on the education of youth.