1 - science is powerful to portray the developments in science that were happening at the time - theory of evolution. / "I had gone to bed Henry Jekyll and awakened Edward Hyde." / "deformed," "dwarfish."
2 - Jekyll's science goes against Lanyon's experiments, which represent the current religion beliefs, reflecting the tension between science and religion during the 19th century. "unscientific balderdash." / my soul sickened at it... I must die." "He had his death warrant written legibly upon his face." -> shows further how Hyde is sinful "damn juggernaut," "Satan's signature." sibilance is like snake hissing, Adam and Eve. /
"O God... like a man restored from death, there stood Henry Jekyll." -> restored from death is a reference to Jesus' resurrection, shows how Jekyll was playing god -> foreshadowing the consequences.
3 - science is unsettling and mysterious, reflects John Hunter - conducted illegal dissections in his house, using dead bodies stolen from graves. / "there would stand by his side a figure to whom power was given" - in science, everything is already determined, we just need to discover it -> power shouldn't be able to be "given" to one individual / in Jekyll's cabinet, there are "traces" of chemicals / the ending is mysterious as it asks the reader a question "I bring the life of that unhappy Henry Jekyll to an end," - if Hyde [evil] took over and won over Jekyll [good] in the end, does that mean that maybe humans are not as balanced morally as we would think? Is evil more powerful?