not on your life

“She teased back something to the effect of ‘Not on your life.’

Normally, I would have said not on your life, especially since we weren’t even sure if he was a vampire.

Every bit of humanity says not on your life.

“To make a long story short, you’re dissatisfied. Well, that’s good. Do you think we number devils are always satisfied with what we come up with? Not on your life! No, we’re constantly contemplating new ways of proving things. Thinking, pondering, meditating—it’s a way of life with us. But when a light finally does go on—and it can take ages, because in mathematics the centuries fly by—then we’re pleased as punch. Only then are we satisfied.”

Except perhaps among the 1%, not on your life.