Learn English – Sure I will or I Sure will

There is a thing called sub-ordinate clauses in English. It is used to provide information that is slightly off topic, and you could pretend the sentence is without it and it will mean the same thing

For example:

John, who was tall, touched the ceiling

is the same as:

John touched the ceiling

In this scenario, the author is saying that you will remember that Bentham says this and that. You can rearrange it as "Bentham says this and that", but the author has decided to add in "you will remember" as a sub-ordinate clause for his own reasons.