Re: Do we want to know the Doctor's secret?
I think the Doctor has used many different names and that he's had a hand in many pivotal events throughout human and non-human history. It'd probably be shocking to learn which ones...
LADY PEINFORTE: But I know your secrets.
THE SEVENTH DOCTOR: Very well--tell them.
LADY PEINFORTE: I shall tell them of Gallifrey, tell them of the Old Time, The Time of Chaos...
--"Silver Nemesis" (1988)
"Don't sweat the small stuff--it makes you small-minded..."