"The first time they tell you that the Earth's turnin' and you just can't quite believe it cause everythin' looks like it's standin' still. I can feel it. The turn of the Earth. The ground beneath our feet is spinnin' at 1,000 miles an hour, and the entire planet is hurtlin' 'round the Sun at 67,000 miles an hour and I can feel it. We're fallin' through space, you and me, clingin to the skin of this tiny little world, and if we let go..."
- The Doctor, Doctor Who