Test pilots have a litmus test for evaluating problems. When something goes wrong, they ask, "Is this thing still flying?" If the answer is yes, then there's no immediate danger, no need to overreact.

Eventually there are going to be cities in space.

I have the nicest life in the world.

I found I have to stay painting.

But I'm the only one who can paint the moon, because I'm the only one who knows whether that's right or not.

It's hard not to be excited when you're going to find a way to land on the moon.

We knew it was going to be difficult to get to the moon. We didn't know how difficult.