I'm racking my brains and Google and can't seem to pull up which Monty Python sketch or movie that one comes from. Give a hint?

Edit: Oh. Found it. In "Meaning of Life", uttered shortly after this musical number. NSFW and liable to cause religious / political flamewars, but it makes the point, so here it is: https://www.youtube.com/watch?v=bzVHjg3AqIQ . You can skip to 6:09 for the line.