Of a truth, every human being is more or less of a Pharisee with regard to certain conventionalities of life.

Complete disregard for the maintenance of some sort of standard of outward appearances is the absolute vanishing point of self-respect.

Till that has been reached by any individual the hope of his reformation is not lost, though at the same time successful dissimulation makes the prospect of a turning point in a vicious career but remote.

Still, "it is a long lane that has no turning." It is therefore most probable that the leaving behind of the key to the cipher was rather due to inadvertence than to intention and design.

And if this view be correct, then Pepys' charming _Diary_ was the purely natural outpouring of his mind without ever a thought being bestowed on authorship and ultimate publication.
With Evelyn's _Diary_, however, it was different.