Here was my own pet lunatic, the most pronounced of his type that I had ever met with, talking elemental philosophy, and with the manner of a polished gentleman.

I wonder if it was Mrs.Harker's presence which had touched some chord in his memory.

If this new phase was spontaneous, or in any way due to her unconscious influence, she must have some rare gift or power.
We continued to talk for some time, and seeing that he was seemingly quite reasonable, she ventured, looking at me questioningly as she began, to lead him to his favourite topic.

I was again astonished, for he addressed himself to the question with the impartiality of the completest sanity.

He even took himself as an example when he mentioned certain things.
"Why, I myself am an instance of a man who had a strange belief.
Indeed, it was no wonder that my friends were alarmed, and insisted on my being put under control.