My expectations were reduced to zero when I was 21. Everything since then has been a bonus.

The universe does not behave according to our pre-conceived ideas. It continues to surprise us.

Even if there is only one possible unified theory, it is just a set of rules and equations. What is it that breathes fire into the equations and makes a universe for them to describe?

There is no prescribed route to follow to arrive at a new idea. You have to make the intuitive leap.

In real time, the universe has a beginning and an end at singularities that form a boundary to space-time and at which the laws of science break down.

Look up at the stars, not down at your feet.

If I had to choose a superhero to be, I would pick Superman. He's everything that I'm not.