"and it die": at the hands of Heaven. "or be broken": by an animal. "or be seized": by robbers. I might think "or be broken," "or be seized," (that he is not liable) whether or not he could rescue it; it is, therefore, written "and it die." Just as death is characterized by insusceptibility to rescue, so, (only) in all such instances he is not liable. These are the words of R. Eliezer.