I love this quote. Not because it's from a comic book movie or from RDJ, but because it fits into so many different aspects of life. Sometimes, looking before you leap defeats the whole purpose or reason you decided to leap in the first place.
The only Hulk fact that i can see that is wrong is the one about Joe fix It. That is a different Hulk entirely. He is smaller, more intellegent and not as strong. You can learn all about the Hulks at Marvel Comics website.