This is why I say pri­or­i­ties can only be observed. In my book, a pri­or­ity is not sim­ply a good idea; it’s a con­di­tion of real­ity that, when observed, causes you to reject every other thing in the uni­verse — real, imag­ined, or prospec­tive — in order to ensure that things related to the pri­or­ity stay alive.

Merlin Mann — Mud Rooms, Red Letters, and Real Priorities.