"There's a light at each end of this tunnel,
You shout 'cause you're just as far in as you'll ever be out
And these mistakes you've made, you'll just make them again
If you only try turning around."
It suddenly struck me that that tiny pea, pretty and blue, was the Earth. I put up my thumb and shut one eye, and my thumb blotted out the planet Earth. I didn't feel like a giant. I felt very, very small. — Neil Armstrong