But just as we say that in wheat, or in any other grain, the whole form of the plant is potentially included —the leaves, the stalk, the joints, the grain, the beard— and do not say in our account of its nature that any of these things has pre-existence, or comes into being before the others, but that the power abiding in the seed is manifested in a certain natural order, not by any means that another nature is infused into it —in the same way we suppose the human germ to possess the potentiality of its nature, sown with it at the first start of its existence, and that it is unfolded and manifested by a natural sequence as it proceeds to its perfect state, not employing anything external to itself as a stepping-stone to perfection, but itself advancing its own self in due course to the perfect state; so that it is not true to say either that the soul exists before the body, or that the body exists without the soul, but that there is one beginning of both, which according to the heavenly view was laid as their foundation in the original will of God; according to the other, came into existence on the occasion of generation.
[expand]
Source: Gregory of Nyssa [a.d. 335 – 395], On the Making of Man, XXIX
[/expand]