How we cite our quotes: (Part.Chapter.Paragraph)
Quote #1
Guitierrez made two assumptions based on the memo. (1.4.18)
If there's a lesson to be found in Jurassic Park—besides, you know, don't clone dinosaurs—it's don't make assumptions. A lot of trouble is caused because characters act on their assumptions instead of fully investigating the situation. Their overconfidence inevitably leads to dire consequences.
Quote #2
"There is absolutely no problem with the island." (2.10.37)
And the Titanic was "unsinkable." John Hammond is not being hyperbolic here: he really believes that none of the issues with the island amount to a problem. His refusal to see reason, of course, eventually results in his own death.
Quote #3
But if planting deadly ferns at poolside was any indication, then it was clear that the designers at Jurassic Park had not been as careful as they should have been. (3.17.30)
Ellie Sattler notices that poisonous ferns have been planted in an easily accessible area. If the park were to open, then children would surely touch them, getting sick or worse. If the designers of the park can't even get ferns right, chances are their designs for keeping the dinosaurs under control have T.-rex-sized flaws.