"Common sense," he continues, "takes good care not to assail violently
those beliefs which tradition has transmuted into principles.

"However, if direct criticism of those beliefs causes common sense to be
regarded unfavorably, it will be welcomed with the greatest reserve and
will maintain a certain prudence relative to this criticism, which will
be equivalent to a proffered reproach.

"Common sense often varies as to external aspects, dependent upon
education, for it is evident that a diamio (Japanese prince) can not
judge of a subject in the same way as would a man belonging to the lowest
class of society.

"The same object can become desirable or undesirable according to the
rank it occupies.

"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.