Have you ever sent someone a picture of ytour winkle?

[Burney]

I love his description of one sad individual as having the look of a man who had once missed an important train and never really gotten over it.

But as you suggest, so many to choose from.

I'd go with "It is a good rule in life never to apologise. The right sort of people do not want apologies,
while the wrong sort take a mean advantage of them."