You can have power over people as long as you don't takeeverything away from them. But when you've robbed a man of everything, he'sno longer in your power.
Bythree methods we may learn wisdom: first, by reflection, which is noblest;second, imitation, which is easiest; and third by experience, which is thebitterest.
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.