Aristotle was a Greek philosopher born in 384 BC who was a pupil of Plato. He believed that education should begin at a young age to develop good habits and values in children and help them become moral citizens. Aristotle thought children under five should learn through play and exercise their bodies and minds. He also felt they should be shielded from indecent language and develop both intellectually and physically. His careful observations of nature influenced his views that children's development relies on both mind and body through play, reading, writing and other subjects.