As i tried to state in class but was so rudely interrupted by the library ventilation system, i believe that a machine is something that does not have the cognitive ability to be aware of its own existance which is the main difference between humans and "machines". Humans generally are aware of their presence in this world, which gives us the freedom of free will, motivation, gives us the ability to have emotions and thoughts. However, I have given this further thought and am beginining to question my answer. Look at a different animal who one would not ordinarily consider a robot, such as a panda bear. Does this panda bear have the same ability as humans to realize its own existance in the world or to think about its wants, needs, or desires in such a way as to satisfy them. I think it is somewhat clear to all that an animal, such as my panda bear, that they do not have this advanced ability. So, does this make panda a machine? The panda bases its life, finding food or a mate, on instinct and the molecular machines that guide its processess. So there is not enough evidence to conclude that the panda bear is not a machine.