The most subversive people are those who ask questions.

(As human beings) We see everything everything in a glass, darkly. Sometimes we can peer through the glass and catch a glimpse of what is on the other side. If we were to polish the glass clean, we'd see much more. But then we would no longer see ourselves.

But all fairytales have rules, and perhaps it’s their rules that actually distinguish one fairytale from the other. These rules never need to be understood. They only need to be followed. If not, what they promise won’t come true.

Life is short for those who are truly able to understand that one day the entire world will come to a complete end. Not everyone is capable of that. Not everyone has the ability to comprehend what going away for all eternity really implies. There are too many distractions, hour by hour, minute by minute, to hinder such an understanding.

A hydrogen atom in a cell at the end of my nose was once part of an elephant's trunk. A carbon atom in my cardiac muscle was once in the tail of a dinosaur.

You can never know if a person forgives you when you wrong them. Therefore it is existentially important to you. It is a question you are intensely concerned with. Neither can you know whether a person loves you. It’s something you just have to believe or hope. But these things are more important to you than the fact that the sum of the angles in a triangle is 180 degrees. You don't think about the law of cause and effect or about modes of perception when you are in the middle of your first kiss.

When we gaze at a star in the Milky Way which is 50,000 light-years away from our sun, we are looking back 50,000 years in time." "The idea is much too big for my little head." "The only way we can look out into space, then, is to look back in time. We can never know what the universe is like now. We only know what it was like then. When we look up at a star that is thousands of light-years away, we are really traveling thousands of years back in the history of space.