"In a vacuum all photons travel at the same speed. They slow down when travelling through air or water or glass. Photons of different energies are slowed down at different rates. If Tolstoy had known this, would he have recognised the terrible untruth at the beginning of Anna Karenina? 'All happy families are alike; every unhappy family is unhappy in its own particular way.' In fact it's the other way around. Happiness is a specific. Misery is a generalisation. People usually know exactly why they are happy. They very rarely know why they are miserable."

“It is easy to be selfish. It is hard to love who I am. No wonder I am surprised if you do.”

“Do all lovers feel helpless and valiant in the presence of the beloved? Helpless because the need to roll over like a pet dog is never far away. Valiant because you know you would slay a dragon with a pocket knife if you had to.”

“To avoid discovery I stay on the run. To discover things for myself I stay on the run.”

“What to say? That the end of love is a haunting. A haunting of dreams. A haunting of silence. Haunted by ghosts it is easy to become a ghost. Life ebbs. The pulse is too faint. Nothing stirs you. Some people approve of this and call it healing. It is not healing. A dead body feels no pain.”

“In the West, we avoid painful encounters with art by trivialising it, or by familiarising it. Our present obsession with the past has the double advantage of making new work seem raw and rough compared to the cosy patina of tradition, whilst refusing tradition its vital connection to what is happening now.”

“Here is some advice. If you want to keep your own teeth, make your own sandwiches ....”