2. The Doctor's Name Is His Timeline
Only the Doctor and River know the name of the Doctor. And Clara, but she forgot it. (As an aside, only River could've written that Time War book: she's the only one who'd write his name down in English, and plus, she's an archaeologist. It's her job to write about it.) Let's just clarify the language of the Time Lords though: Gallifreyan is an ancient tongue undecipherable to the TARDIS: she leaves it as it is, and we get that lovely, curly writing that resembles the inside of a fob watch. You must have noticed that though, right? Circular Gallifreyan is designed to look like the workings of a watch. The Time Lords literally write in time, as well as walk in it. There's a rumour that the Doctor has every companion's name written in the latest TARDIS interior, and there's even a program for fans to download and write their own names in Gallifreyan. Facing facts though, no one knows what any of it means. We only know that the Doctor doesn't like to tell anyone his name. What if the Doctor's ashamed of his name because it reveals everything he's ever done? Sure, his name is dangerous, but only because it opens his tomb: it's probably not a dangerous word. No one will ever reveal the Doctor's name obviously, but it all points to time: he is a Time Lord, after all.