Six in the fifth place means

No boasting of wealth before one's neighbor.

It is favorable to attack with force.

Nothing that would not further.

Modesty is not to be confused with weak good nature that lets things take their own course. When a man holds a responsible position, he must at times resort to energetic measures. In doing so he must not try to make an impression by boasting of his superiority but must make certain of the people around him. The measures taken should be purely objective and in no way personally offensive. Thus modesty manifests itself even in severity.