《韩非子·八经》
所以用一人察得十人的阴谋活动，是统治下层的途径；用十人察得一人的阴谋活动，是揭露上面的途径。
故以一得十者，下道也；以十得一者，上道也。
Therefore, using one person to detect the conspiracy of ten people is a way to rule the lower levels; using ten people to detect the conspiracy of one person is a way to reveal the upper levels.