'I believe the Doctor's is an excellent establishment.

I've heard that it's very strictly conducted, and there is nothing but learning going on from morning to night.' 'And it's very expensive,' added Mr Dombey.
'And it's very expensive, Sir,' returned Mrs Pipchin, catching at the fact, as if in omitting that, she had omitted one of its leading merits.
'I have had some communication with the Doctor, Mrs Pipchin,' said Mr Dombey, hitching his chair anxiously a little nearer to the fire, 'and he does not consider Paul at all too young for his purpose.

He mentioned several instances of boys in Greek at about the same age.

If I have any little uneasiness in my own mind, Mrs Pipchin, on the subject of this change, it is not on that head.

My son not having known a mother has gradually concentrated much--too much--of his childish affection on his sister.