Doctor Alan Grant witnessing the Brachiosaurus for the first time... John Williams' heartfelt score perfectly captured the wonder of witnessing one's boyhood dreams finally fulfilled.
Throughout that scene, Grant and Sattler geeking out like enthusiastic schoolchildren over the sight of a real, living dinosaur and Hammond's kindly old grandfather demeanor toward them. This exchange really sums it up:
Grant: How fast are they? Hammond: Well, we clocked the T. rex at thirty-two miles per hour... Sattler:[whips around to look at him] T-T. rex? Did you say you have a T. rex? Hammond: Yes. Grant:[breathless] Say it again. Hammond:[giddy with excitement] We have a T. rex! [Grant starts hyperventilating with excitement and Sattler runs over to calm him down] Sattler: Put your head between your knees. Hammond: Dr. Grant ... my dear Dr. Sattler ... welcome to Jurassic Park.
The scene where they find the Triceratops.... For many nostalgic dinosaur-lovers who watched this film as children, the opportunity to see your favourite dinosaur, something that existed only in dreams and bed-time stories, moving and living and breathing in all the ways you believed it to; that, ladies and gentlemen, is heartwarming.
Dr. Grant puts it into words perfectly in that very scene, too.
Dr. Grant: They were always my favorite when I was a kid. Now, I see her and she's the most beautiful thing I've ever seen.
You know that Muldoon is loyal to Hammond when he asks him to try to find his grandchildren in the T. rex paddock.
Hammond himself, when he finds out the phones are working, but hears the gunshots. He calls the chopper and personally drives Ian to the visitors center, not caring for a second that there's dinosaurs on a rampage between the bunker and center; just so he could rescue Grant, Sattler, and his grandchildren.
And the last moment on the island, when Hammond takes one last look back and Grant almost seems to comfort him.
When Alan climbs up the tree to get Tim, Tim has the all-too-real childlike fear about getting in trouble for throwing up in the car. Alan patiently comforts him and tells him he won't tell anyone that he threw up and nervously eyes the creaking branches.
When Grant tells Lex to wait for him while he rescues Tim from the car, she's afraid that he'll abandon her like Gennaro did when the T.Rex attacked. Grant, however, assures her that he won't leave.
Grant and the kids' interactions with the Brachiosaurus.
The dinosaur eggs Grant and the kids found, and the babies little footprints going away.
Grant: Malcolm was right. Life found a way.
The very last tracking shot of the film. As they leave Isla Nublar on the rescue copter, Grant dozes and watches a flock of pelicans fly in perfect formation. Perfectly sums up all the themes in the film (like you do) in a non-Narmy way.
Hammond talks about the reason he created Jurassic Park.
Hammond: With this place, I want to give them something that wasn't an illusion. Something that was real. Something they can see, and touch.
Ian's attempt to save Tim and Lex from the T. rex was very brave and selfless.
Say what you will about Lex, she does get some genuinely nice moments.
She is the only person who can approach the young raptor they found, successfully putting a radio collar on her (something which Muldoon and the dinosaur handlers failed to do). How? Because she was the only person who was kind to her. Another such moment is her befriending the young Triceratops they meet. It's a small, cute moment that basically says the dinosaurs are not Always Chaotic Evil monsters that only exist to kill people.
It's also a poignant reminder of what Jurassic Park could have been, if certain things had gone different.
She reassures Tim that their father (who regards him as The Unfavorite) does, in fact, care about him.
In the second book, Levine tends to come off as a spoiled, whiny asshole, but there are times when his heart of gold shows through. He seems to have developed almost paternal feelings towards Kelly and Arby; he tries to shield them from the sight of Howard King being eaten by Velociraptors, and after Eddie is killed and Arby dragged away by the raptors, his first instinct is not to flee for his own life, but to get weapons from Thorne and kill every one of them.