Once a child can consistently hit a ball with…
Once a child can consistently hit a ball with a bat, say, or play a simple tune on the piano or count the number of eggs in a carton, that achievement becomes a point of pride and serves as motivation for further achievements in that area.
— from Expanding Your Range (Growth/Change/Education/Learning/Habit) · Peak: Secrets from the New Science of Expertise by Ansers Ericsson and Robert Pool