Since the time of Confucious back in the sixth century BC, childhood has been known as the "foundation stage of life". The basic attributes and behaviour patterns, the way the child feels and acts, are developed in the first five or six years. They largely determine what kind of person the child will be as an adult. Two separate, but related processes build the foundations for the child's physical development-behaviour and attitude. The processes are maturation and learning. Maturation is the tural development of the child's inherited traits, both mental and physical. It is an ongoing process that begins before birth. When maturation reaches a certain point, learning can begin. For example, when the muscles of the legs and back have matured enough, the infant can learn to walk. Other kinds of maturation and learning will continue at different rates and times.