Nature was of no consequence at all.

No matter what a young gentleman was intended to bear, Doctor Blimber made him bear to pattern, somehow or other.
This was all very pleasant and ingenious, but the system of forcing was attended with its usual disadvantages.

There was not the right taste about the premature productions, and they didn't keep well.

Moreover, one young gentleman, with a swollen nose and an excessively large head (the oldest of the ten who had 'gone through' everything), suddenly left off blowing one day, and remained in the establishment a mere stalk.

And people did say that the Doctor had rather overdone it with young Toots, and that when he began to have whiskers he left off having brains.
There young Toots was, at any rate; possessed of the gruffest of voices and the shrillest of minds; sticking ornamental pins into his shirt, and keeping a ring in his waistcoat pocket to put on his little finger by stealth, when the pupils went out walking; constantly falling in love by sight with nurserymaids, who had no idea of his existence; and looking at the gas-lighted world over the little iron bars in the left-hand corner window of the front three pairs of stairs, after bed-time, like a greatly overgrown cherub who had sat up aloft much too long.
The Doctor was a portly gentleman in a suit of black, with strings at his knees, and stockings below them.