As a matter of fact, the faults of expression were to a certain extent removed by subsequent revisions, though some of the vagueness and ambiguity of the first draft persisted and appeared in the final text of the Covenant.
The more serious defects of the plan were in the principles on which it was based and in their application under the provisions of the articles proposed.

The contemplated use of force in making good the guaranty of sovereign rights and the establishment of a primacy of the Great Powers were provided for in language which was sufficiently explicit to admit of no denial.

In my opinion these provisions were entirely out of harmony with American ideals, policies, and traditions.

Furthermore, the clauses in regard to arbitration and appeals from arbitral awards, to which reference has been made, the lack of any provision for the establishment of a permanent international judiciary, and the introduction of the mandatory system were strong reasons to reject the President's plan.
It should be borne in mind that, at the time that this document was placed in my hands, the plan of General Smuts for a League of Nations had, as I have said, been printed in the press and in pamphlet form and had been given wide publicity.

In the Smuts plan, which gave first place to the system of mandates, appeared the declaration that the League of Nations was to acquire the mandated territories as "the heir of the Empires." This clever and attractive phrase caught the fancy of the President, as was evident from his frequent repetition and approval of it in discussing mandates under the League.