Man: [on TV] "In order to break free of Earth's atmosphere, a rocket ship must attain speeds of upwards of 25,000mph."
Reese: Bull! If they went that fast they would just be squashed to the back of their seats! They wouldn't float around!
Malcolm: You're confusing acceleration with velocity. You feel it when you first start going faster, but once you're up to speed, you don't even notice. I mean, right now we're on a planet that's spinning at 1,000 miles per hour. And that's just rotational velocity, we're also travelling around the sun at almost 67,000 mph. And then, the whole solar system is hurtling through the galaxy which is hurtling away from other galaxies 'cause the universe is expanding.
[Reese holds on tightly to the couch]
Dewey: Wee-ee-ee-ee!