CLARA: You get used to not knowing. I thought I never would. I was wrong. I know who he is. I know how he began and I know where he’s going. I learnt the truth about The Doctor, and his greatest secret - the day we went to Trenzalore.

DOCTOR: You get used to not knowing. I thought I never would. I was wrong. I know who Clara Oswald is. I know how she came to be in my life, and I know what she will always mean. I found out, the day we went to Trenzalore.