Isaacs J. I entirely agree. The judgment of Rich J. is
perfectly right, and I only wish to add a very few words in
reference to one argument put by the appellant. He urged
very strongly that the restriction upon his power of earning his
livelihood was, under the later decisions, improperly infringed,
and he referred to a phrase used by Lord Macnaghten in Nor-
denfelt vy. Maxim Nordenfelt Guns and Ammunition Co. (1),
and quoted by Viscount Haldane L.C. in Mason v. Provident
Clothing and Supply Co. Ltd. (2). That phrase occurs in this
sentence : - " It is a sufficient justification, and indeed it is the
only justification, if the restriction is reasonable - reasonable,
that is, in reference to the interests of the parties concerned and
reasonable in reference to the interests of the public, so framed
and so guarded as to afford adequate protection to the party in
whose favour it is imposed, while at the same time it is in no
way injurious to the public." The words upon which the appel-
lant laid stress were "the interests of the parties concerned," and
he said that they meant the interests of the covenantor as well as
and as distinct from those of the covenantee. The answer to his
argument, in my opinion, is this: It is quite true that by the law
the interests of both parties are conserved, but in this way, that
the covenantee is entitled by law, if he can get such an agreement
from the covenantor, to have all reasonably necessary provision
for his adequate protection. That is so whether the agreement is
one relating to the sale of a business or the engagement of an
employee. On the other hand, the covenantor is entitled, what-
ever he has actually agreed to do or to abstain from doing, to
have the fullest liberty of action consistent with all reasonably
necessary precautions consented to for the adequate protection of
the covenantee. That is the frontier line, so to speak, dividing
the interests which the law preserves for both parties. If that
lig snot passed, then the covenantor's interests are not infringed