“In winter here no heart could mourn for summer or for spring. No blemish or sickness or deformity could be seen in anything that grew upon the earth. On the land of Lórien, there was no stain.”

He would go without sleep for days when in the grips of a case.
I am a brain, Watson. The rest of me is a mere appendix.
J: So what were we doing there?
S: Oh, just passing the time. And proving a point.
J: What point?
S: You.
WhoLock AU: After the fall, the Doctor receives a letter.