"AIs with prosthetic bodies probably never experience hunger, sexual desire, desire to sleep or even the desire for honor and glory, unless programmed to do so. If they have any desire it is probably the desire to expand their network or create something or control something. In other words to grow as an information system.
The definiton of a human is very vague, so when an AI superior to a human is developed, will we really be able to recognize it?"
Masamune Shirow, GITS Volume 1, Notes