:Scientist: [dangling from the bottom of a ladder further up the shaft] I- I can’t hold on much longer!
Freeman: Oh, cry me a river! I just jumped across an elevator shaft onto a ladder and I’m still here! Do I look like Spider-Man to you? No! If I was Spider-Man, I could do that web-flinging crap and be out of here hours ago! The point is, you can learn how to do a pull-up! Although, I’ll admit, these ledges suck.
[Scientist loses his grip] Whoa! You might want to- [Scientist falls to his death] Never mind.

One of my favorite quotes. I haven't watched the entire series in awhile so I can't remember any other good ones.