'''Easy it is now to guess how quickly the roving eye of Saruman was trapped and held; and how ever since he has been persuaded from afar, and daunted when persuasion would not serve. The biter bit, the hawk under the eagle's foot, the spider caught in a steel web! How long, I wonder, has he been constrained to come often to his glass for inspection and instruction, and the Orthanc-stone so bent towards Barad-dûr that, if any save a will of adamant now looks into it, it will bear his mind and sight swiftly thither? And how it draws one to itself! Have I not felt it? Even now my heart desires to test my will upon it - to look across the wide seas of water and of time to Tirion the Fair, and perceive the unimaginable hand and mind of Fëanor at their work, while both the White Tree and the Golden were in flower!' He sighed and fell silent.'' (The Lord of the Rings, Book III, Chapter XI).
We could all use one couldn't we?