<span>In Dr. Jekyll and Mr. Hyde, the theme “evil
can never truly hide itself” is the underlying theme that connects all the details
together. For some time, the good attributes of the Jekyll/Hyde character were
the only ones people around him see. He was able to hide his evil side in the darkness
of the night. However, a secret that is so hideous cannot be forever hidden
especially that it had consequences that affected the people around him. When his
evil side was beginning to take more control of himself, he could not hide it
anymore.</span>
One characteristic of Enlightenment that is seen in this excerpt is that people should be guided by the reason and not irrational fears, however serious they may seem to be. The protagonist/author of the diary seems to be the only cool-headed person in this terrible situation. Everybody else is freaking out, running about and screaming. He notices multiple times that nobody is making any effort to actually quench the fire. He is the one who goes to warn the king and suggests that houses should be pulled down. There is one very interesting remark about Lord Mayor, who is in a panic just like everyone else: "To the King's message he cried, like a fainting woman..." Misogyny aside, this comment shows the speaker's manly, reasonable, commendable attitude. He is an active person who does something to undo the damage, and not just a passive observer or a coward who runs away in panic.
A diary entry was a fitting form during the Enlightenment period because that was the first time that the words and opinions of a more or less ordinary person were deemed important. A diary has this risk of being a subjective collection of personal impressions. But Pepys' diary pretends to be highly objective because its author sees himself as a reasonable man, important in his own right, competent enough to keep a diary and record some important things that happen around him, to other ordinary people.
The third one is the one that contains the true analogy.
