1. In ancient times, because battles were conducted on chariots, the military power of a state was measured by the number of chariots it possessed. A thousand-chariot state during Master Kong's time was a fairly small one. Note that each chariot was drawn by a team of four horses.
2. i.e during slack seasons in farming.
1. "Abroad" here implies 'at school'.
2. The Six Arts, namely, the rituals, music, archery, charioteering, language and arithmetic.