If you are distressed by anything external, the pain isnot due to the thing itself but to your own estimate of it; and this you havethe power to revoke at any moment.
The exercise of power is determined by thousands ofinteractions between the world of the powerful and that of the powerless, allthe more so because these worlds are never divided by a sharp line: everyonehas a small part of himself in both.
In oneof our concert grand pianos, 243 taut strings exert a pull of 40,000 poundson an iron frame. It is proof that out of great tension may come great harmony.