existence of rights which have not been expressly withheld, to defend them warily when they are assailed, and by all means to hold on. Thus, as in the case of the right of foreign residence in Peking, the right of foreign residence in the interior, and in many others, wise conservatism is the safest defence. The threatening reef which seemed so insuperable a barrier to navigation, once penetrated, offers upon the inner side a lagoon of peace and tranquillity, safe from the storms and breakers which vainly beat against it.