A mathematician is a machine for turning coffee into theorems.

Derivatives are like sex. It’s not who we’re sleeping with, it’s who they’re sleeping with that’s the problem.

We could argue that if we are pricing a complex product that is highly model dependent then the exact definition of the independent variable will be relatively unimportant compared with the choice of model.

Just because you’re paranoid, don’t mean they’re not after you.

I’d like to kill somebody.