"You will say, 'Is the League an absolute guarantee against war?' No; I do not know any absolute guarantee against the errors of human judgment or the violence of human passion, but I tell you this: with a cooling space of nine months for human passion, not much of it will keep hot. I ask you this: If it is not an absolute insurance against war, do you want no insurance at all? Do you want nothing? Do you want not only no probability that war will not recur, but the probability that it will recur?"
The statement above was most likely made by which of the following?