But it only takes a doubt. A drop of ink falls into a clear glass of water and clouds the whole thing. So the moment after I realised I wasn't perfectly well was the moment I realised I was still very ill indeed.

And for three weeks I was trapped in my own mind again. But this time, I had weapons. One of them, maybe the most important, was this knowledge: I have been ill before, then well again. Wellness is possible.

The price for being intelligent enough to be the first species to be fully aware of the cosmos might just be a capacity to feel a whole universe’s worth of darkness.

MINDS ARE UNIQUE. They go wrong in unique ways. My mind went wrong in a slightly different way to how other minds go wrong. Our experience overlaps with other people's, but it is never exactly the same experience.

There is no standard normal. Normal is subjective. There are seven billion versions of normal on this planet.

We need, ultimately, to be able to view mental health with the same clear-headedness we show when talking about physical health.