Listen widely to remove your doubts and be careful when speaking about the rest and your mistakes will be few. See much and get rid of what is dangerous and be careful in acting on the rest and your causes for regret will be few. Speaking without fault, acting without causing regret: 'upgrading' consists in this.
ConfuciusWouldst thou know if a people be well governed, or if its laws be good or bad, examine the music it practices.
Confucius