The Principium individuationis (n.) is not found before the thing exists or after it is finished, but in the act of becoming one.
The Principium individuationis (n.) cannot sit in form or in matter: both exist before the individual, and they only meet when it begins.
The Principium individuationis (n.) is a genesis run backward: start from the finished individual, then invent a first cause that already looks like it.
The Principium individuationis (n.) cannot be sought in matter for the first Greek physicists; it comes before the individual and lingers in it as a drive to grow.
The Principium individuationis (n.) is not to be found in matter, form, or force; hunting there finds individuation already finished and calls it a cause.