A theory should not attempt to explain all the facts, because some of the facts are wrong.

The past is not fixed; it shifts with our retelling.

I came from nothing, so I have nothing to lose.

The heart remembers what the mind tries to forget.

If history were taught in the form of stories, it would never be forgotten.

"The study of computational complexity teaches us that some problems are inherently difficult, no matter how clever our algorithms are."