Almost all of our relationships begin and most of them continue as forms of mutual exploitation, a mental or physical barter, to be terminated when one or both parties run out of goods.
The tormentof human frustration, whatever its immediate cause, is the knowledge that theself is in prison, its vital force and ‘mangled mind’ leaking away in lonely,wasteful self-conflict.
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.