"A great love is a lot like a good memory. When it’s there, and you know it’s there, but it’s just out of your reach, it can be all that you think about. You can focus on it, and try to force it, but the more you do, the more you seem to push it away. But if you’re patient, and you hold still, then maybe… Just maybe… It will come to you"
"What on Earth..?"
Eleven, Prof. Brian Cox and a Silent - The Science of Doctor Who (BBC 2013)