It is a violation which has obsessed the tyrants of the twentieth century. They do not want simply to kill their opponents, but to liquidate them, to deny that they have ever existed. ↗
For since it is impossible for a created monad to have a physical influence on the inner nature of another, this is the only way in which one can be dependent on another. ↗
It's just nice to see people enthusiastic about their tennis and want to learn and improve - for me that's the most important thing - I still love my tennis. ↗