If this is a true account of the law as it stands, the law does
undoubtedly treat the individual as a means to an [47] end, and
uses him as a tool to increase the general welfare at his own
expense. It has been suggested above, that this course is
perfectly proper; but even if it is wrong, our criminal law
follows it, and the theory of our criminal law must be shaped
accordingly.

Further evidence that our law exceeds the limits of retribution,
and subordinates consideration of the individual to that of the
public well-being, will be found in some doctrines which cannot
be satisfactorily explained on any other ground.

The first of these is, that even the deliberate taking of life
will not be punished when it is the only way of saving one's own.
This principle is not so clearly established as that next to be
mentioned; but it has the support of very great authority. /1/ If
that is the law, it must go on one of two grounds, either that
self-preference is proper in the case supposed, or that, even if
it is improper, the law cannot prevent it by punishment, because
a threat of death at some future time can never be a sufficiently
powerful motive to make a man choose death now in order to avoid
the threat. If the former ground is adopted, it admits that a
single person may sacrifice another to himself, and a fortiori
that a people may. If the latter view is taken, by abandoning
punishment when it can no longer be expected to prevent an act,
the law abandons the retributive and adopts the preventive
theory.

The next doctrine leads to still clearer conclusions. Ignorance