“The problem about the future is that it keeps turning into the present.”

“Problems often look overwhelming at first. The secret is to break problems into small, manageable chunks. If you deal with those, you're done before you know it.”

“The problem with people is that they're only human.”

“You can present the material, but you can't make me care.”

“Dad, how do soldiers killing each other solve the world's problems?”

“Calvin : There's no problem so awful, that you can't add some guilt to it and make it even worse.”

“That's the whole problem with science. You've got a bunch of empiricists trying to describe things of unimaginable wonder.”