America must dream again, and have the faith to achieve the dream.

I inherited depression from my mother's side of the family.

Weve got to go [back to the moon]. But we dont want to stay too long. ... The ultimate goal is Mars.

The energy varies with the square of the velocity, so if you need five times the velocity, that's 25 times the energy.

Most people never believed in the real possibility of going to the moon, and neither did I until I was in my twenties.

I don't watch 'American Idol,' but I wouldn't call it 'undignified.'

Everyone who's been in space would, I'm sure, welcome the opportunity for a return to the exhilarating experiences there.