He spoke of human solitude, about the intrinsic loneliness of a sophisticated mind, one that is capable of reason and poetry but which grasps at straws when it comes to understanding another, a mind aware of the impossibility of absolute understanding. The difficulty of having a mind that understands that it will always be misunderstood.

At the most simplistic level physicists tell us that what we see as reality is not actually accurate. A rock looks solid to us but it's full of empty space and atoms moving and we see it as solid because we need to because it helps us survive, right? Survival being our goal. You can extrapolate that to many other things.

If it weren't for her, there would never have been an empty space, or the need to fill it.

ONE THING I AM NEVER GOING TO DO WHEN I GROW UP Is fall in love, drop out of college, learn to subsist on water and air, have a species named after me, and ruin my life.

When at last I came upon the right book, the feeling was violent: it blew open a hole in me that made life more dangerous because I couldn't control what came through it.

Why are we so addicted to factual knowledge? Why are we so uncomfortable with the unknown? Is it something about the anxiety of our time? Because of course that wasn't always the way. Even now the whole idea of the rational individual has been subject to question and yet we still cling to this idea of factual, rational knowledge being more valuable than whatever its opposite might be.

Later - when things happened that they could never have imagined - she wrote him a letter that said: When will you learn that there isn't a word for everything