THE SOUL IS SAID TO BE IN THE BODY BECAUSE THE BODY ALONE IS VISIBLE.

All men say that the soul is in the body, however, because the soul is

not visible, while the body is. Observing the body, and judging that it

is animated because it moves and feels, we say that it has a soul, and

we are thereby led to suppose that the soul is in the body. But if we

could see and feel the soul, and if we could realize that she surrounds

the whole body by the life she possesses, and that she extends around

it equally on all sides till the extremities, we would say that the

soul is in no way in the body, but that on the contrary the accessory

is within its principle, the contained within the container, what flows

within the immovable.

Plotinos: Complete Works, v. 2 In Chronological Order, Grouped in Four Periods · 第 151 / 381 题