It is a very human tendency to think that what mankind does not yet know no one can learn. And yet it must be perfectly clear to everyone that the past learning of mankind cannot be allowed to hinder our future learning. Mankind has not gone so very far when you measure its progress against the knowledge that is yet to be gained—the secrets that are yet to be learned.
One good way to hinder progress is to fill a man's head with all the learning of the past; it makes him feel that because his head is full, there is nothing more to learn. Merely gathering knowledge may become the most useless work a man can do. What can you do to help and heal the world? That is the educational test. If a man can hold up his own end, he counts for one. If he can help ten or a hundred or a thousand other men hold up their ends, he counts for more. He may be quite rusty on many things that inhabit the realm of print, but he is a learned man just the same. When a man is master of his own sphere, whatever it may be, he has won his degree—he has entered the realm of wisdom.
The work which we describe as Studies in the Jewish Question, and which is variously described by antagonists as "the Jewish campaign," "the attack on the Jews," "the anti-Semitic pogrom," and so forth, needs no explanation to those who have followed it. Its motives and purposes must be judged by the work itself. It is offered as a contribution to a question which deeply affects the country, a question which is racial at its source, and which concerns influences and ideals rather than persons. Our statements must be judged by candid readers who are intelligent enough to lay our words alongside life as they are able to observe it. If our word and their observation agree, the case is made. It is perfectly silly to begin to damn us before it has been shown that our statements are baseless or reckless. The first item to be considered is the truth of what we have set forth. And that is precisely the item which our critics choose to evade.