We live in a bewildering world.

Cambridge is one of the best universities in the world, especially in my field.

You can't regulate every lab in the world.

The Paralympic Games is about transforming our perception of the world.

There's no way to remove the observer - us - from our perceptions of the world.

When we understand string theory, we will know how the universe began. It won't have much effect on how we live, but it is important to understand where we come from and what we can expect to find as we explore.