In essentials, I believe, he is very much what he ever was.
If there were anyone that one could apply to with a probability of gaining such a clue as that, it might be of essential consequence.
The letter shall certainly be burnt, if you believe it essential to the preservation of my regard; but, though we have both reason to think my opinions not entirely unalterable, they are not, I hope, quite so easily changed as that implies.
—for I dare not hope," he continued in a lower and more serious tone, "that he is improved in essentials."
There are no more uses of "essential" in the book.
Show samples from other sources
The essential feature of the pen is that it writes so consistently.
I carry all the essential tools and materials I need in this toolbox.