I mean everything that is capable of being bounded by some shape, of existing in a definite place, of filling a space in such a way as to exclude the presence of any other body within it; of being perceived by touch, sight, hearing, taste, or smell, and also of being moved in various ways, not indeed by itself, but by some other thing by which it is touched; for to have the power of moving itself, and also of perceiving by the senses or thinking, I judged could in no way belong to the nature of body; rather, I was puzzled by the fact that such capacities were found in certain bodies.