In spacetime, all events are baked together: a four-dimensional continuum. Past and future are no more privileged than left and right or up and down.

Although I am no longer caught in the past, the future seems like a ridiculous thing to me. Try to catch it, hold it in your hand. It disappears every time.

You carry the past with you. Even if there's a before, and an after, in your life. It's still the same life. The trick is to build a bridge between that and what comes later.

You need to come face-to-face with the past, not as some naive, easily wounded boy, but as a grown-up, independent professional. Not to see what you want to see, but what you must see. Otherwise you'll carry around that baggage for the rest of your life.

Like other ghosts, she whispers; not for me to join her, but so that, when I'm close enough, she can push me back into the world.

For the modern physicist, reality is the whole thing, past and future joined in a single history. The sensation of now is just that, a sensation, and different for everyone. Instead of one master clock, we have clocks in multitudes.