All this fuss about sleeping together. For physical pleasure I'd sooner go to my dentist any day.
We cherish our friends not for their ability to amuse us, but for our ability to amuse them.
Almost all crime is due to the repressed desire for aesthetic expression.
Don't give your opinions about Art and the Purpose of Life. They are of little interest and, anyway, you can't express them. Don't analyze yourself. Give the relevant facts and let your readers make their own judgments. Stick to your story. It is not the most important subject in history but it is one about which you are uniquely qualified to speak.