Quotes from Space Brothers (TV, 2012) (by characters)

Mutta Nanba: It would have been faster to crunch the numbers in my head! My mental abacus was too realistic! The beads kept sliding around because I was running!

Mutta Nanba: First, you see the big guy over there? He's athletic, with plenty of muscle, as you can see. He likes to act cool and play the tough guy. However... His cell phone wallpaper is a cat.

Ryūnosuke Tomii: The American thinker Buckminster Fuller once called our planet "Spaceship Earth". On the other hand, British scientist James Lovelock stated that our planet was a life form named Gaia. I was always puzzled by the contrast between spaceship and life form. But the British scientist Richard Dawkins helped tie it together. Humans can be considered the Earth's genes. The planet is trying to self-replicate. That is natural behavior for a life form.

Ryūnosuke Tomii: Michael Ende once compared humans to cancer cells, but I believe that humans are germ cells. However, there is the possibility that any of us could become the cancer cell that destroys Earth.

Ryūnosuke Tomii: If we are truly Earth's genes, the purpose of space exploration is because mutation is necessary.