'Mad' is a term we use to describe a man who is obsessed with one idea and nothing else.

Murderers, in general, are people who are consistent, people who are obsessed with one idea and nothing else.

Who cares about great marks left behind? We have one life... just one. Our life. We have nothing else.

All of us are mad. If it weren't for the fact every one of us is slightly abnormal, there wouldn't be any point in giving each person a separate name.

This free will business is a bit terrifying anyway. It's almost pleasanter to obey, and make the most of it.

When you want to believe in something, you also have to believe in everything that's necessary for believing in it.