- Doctor Lamar's revelation near the end that a) he's known about Vincent's real identity all along and b) admires the fact that, despite his so-called 'deficiencies' and having to hide them from his bosses, Vincent otherwise has qualified for the space program, all through his solid willpower and his willingness to do whatever it took.
Doctor Lamar: "I still haven't told you about my son, have I? He's a big fan of yours. He wants to apply here... Unfortunately, my son's not all that they promised. But then again, who knows what he could do? For future reference, right-handed men don't hold it with their left [when they are peeing]. Just one of those things." (gesturing for Vincent to hurry up) "You're gonna miss your flight, Vincent."
- Eugene climbing the stairs (note that he can't use his legs and has to pull himself along) edges somewhere between Awesome and Heartwarming.
- Vincent's Badass Boast to his brother in the middle of their last game of chicken.
Vincent: "That's how I did it, Anton: I never saved anything for the swim back!"
- The films tag-line itself, There is no Gene for the Human Spirit.