Gin Tama

Gintoki:
If you think about it, South Pole may become like North Pole if you adapt your mind.

Shinpachi:
Gin-san, the fact that it's the "South" Pole doesn't mean it's always summer there.

Gintoki:
I know that, okay? South Pole may not be a paradise! What I mean is that they say you'll feel cold as long as you think it's cold! ...That really doesn't work.

Shinpachi:
That's embarrassing. I think you're contradicting yourself to cover up your mistake. Ridiculous.