"It is proper, and indeed often necessary, for
the Family Court, in dealing with the circumstances
of a particular case, to discuss the weight which
it considers should be given, in that case, to one
factor rather than another. It is understandable
that practitioners, desirous of finding rules, or
even formulae, which may assist them in advising
their clients as to the possible outcome of
litigation, should treat the remarks of the court
in such cases as expressing binding principles, and
that judges, seeking certainty, or consistency,
should sometimes do so. Decisions in particular
cases of that kind can, however, do no more than
provide a guide; they cannot put fetters on the
discretionary power which the Parliament has left
largely unfettered. It is necessary for the
court, in each case, after having had regard to
the matters which the Act requires it to consider,
to do what is just and equitable in all the
circumstances of the particular case."