Fair Warning
Remember:
The things within our power are naturally at our disposal, free from any restraint or hindrance; but those things outside our power are weak, dependent, or determined by the whims and actions of others. Remember, too, that if you think that you have free reign over things that are naturally beyond your control, or if you attempt to adopt the affairs of others as your own, your pursuits will be thwarted and you will become a frustrated, anxious, and fault-finding person.
~ Epictetus, The Art of Living