"Must one believe that common sense is excluded from two such incompatible opinions?
"No, not at all. An idea can be rejected or accepted by common sense without violating the principles of logic in the least.
"If, as one frequently sees, an idea be unacceptable because of having been presented before those belonging to a particular environment, common sense, by applying its laws, will recognize that the point of view must be changed before the idea can become acceptable."
And again, Yoritomo calls our attention to a peculiar circumstance.
"Common sense," he says, "is the art of resolving questions, not the art of posing them.
"When taking the initiative it is rarely on trial.
"But the moment it is a case of applying practically that which ingenuity, science or genius have invented, it intervenes in the happiest and most decisive manner.
"Common sense is the principle element of discernment.
"Therefore, without this quality, it is impossible to judge either of the proposition or the importance of the subject.
"It is only with the aid of common sense that it is possible to distinguish the exact nature of the proposition, submitted for a just appreciation, and to render a solution of it which conforms to perfect accuracy of interpretation.