There are very few without regret, and yet one should always try to regret as little as possible. The Doctor tries not to think about the tomes of things he could consider regrets, that very much are regrets if he thinks about it for even a moment too long ...

If one gets stuck on the details, there is so much to regret. The bigger picture is a lot more forgiving.

He smiles wide, and brings the cup up to inhale the scent of the tea.

"Yes. Wouldn't have lived any other way."