The Ideal Thief follows The Thieve's Pentagram:
A Thief is Quick: The Ideal Thief is quick in all aspects. He is fast on his feet, he is fast with his hands, he thinks and acts quickly. The Ideal Thief is quick to acquire an item and quick to release it to his Fence
A Thief is Prepared: The Ideal Thief is always prepared physically and mentally. The Ideal Thief has all the tools needed to acquire the item in mind. He has picks for locked doors, ropes for scaling castle walls, ball bearings for traps, pits, and distraction, a bludgeon for subduing guards, and various small blades for dire emergencies. The Ideal Thief knows that non-essential tools will be cumbersome and that being ill-equipped will lead to failure and death.
A Thief is Aware: The Ideal Thief is never caught, and must be aware of things detrimental to his goal in terms of the past, the present, and the future. The Ideal Thief remembers each part of his mission, so that his past actions will not lead to him getting caught. The Ideal Thief uses his senses to ensure that he is fully aware of anything and anyone around him in the present. The Ideal Thief understands the consequences of each action, each breath and step he takes may prove the difference between success and failure in the future.
A Thief is Hidden: The Ideal Thief knows how to use the shadows as his cover. The Ideal Thief knows how to calculate fields of vision based on lighting, height, angle, and direction. The Ideal Thief is never seen.
A Thief is Silent: The Ideal Thief understands how to minimize his sound. The Ideal Thief knows how to walk so that his steps cover more area per time, which limits the sound made. The Ideal Thief knows to walk upstairs more than downstairs because walking up produces less sound. The Ideal Thief knows how to match his motions with ambient sound. The Ideal Thief is never heard.