Some individuals in this world are destined for self-destruction, and rational arguments are often ineffective with them. The author compares Justine to a sleepwalker on the edge of a dangerous tower, emphasizing the danger in trying to rouse her suddenly. Instead, the best approach is to silently follow and gently guide her away from the looming dangers.

There are some characters in this world who are marked down for self-destruction, and to these no amount of rational argument can appeal. For my part Justine always reminded me of a somnambulist discovered treading the perilous leads of a high tower; any attempt to wake her with a shout might lead to disaster. One could only follow her silently in the hope of guiding her gradually away from the great shadowy drops which loomed up on every side.