“Something unknown is doing we don't know what.”

“Reports that say that something hasn't happened are always interesting to me, because as we know, there are known knowns; there are things we know we know. We also know there are known unknowns; that is to say we know there are some things we do not know. But there are also unknown unknowns- the ones we don't know we don't know.”

“And for once, Donald Rumsfeld, in the news at the time over the Iraq war made sense to me: "As we know," he said, famously, "there are known knowns-things we know we know. We also know there are known unknowns-things we know we don't know. But there are also unknown unknowns- things we don't know we don't know.”

“Shouldn't we stand back to back or something?" "What? Why?" "I don't know. In movies that's what they do in this kind of… situation.”

“How can you know what you're capable of if you don't embrace the unknown?”

“When we say we know something in our bones, we mean we don't know yet how we know what we know. This is what we mean by "bones.”