His eyes sparkled; his features expanded into a benign serenity; and his wonted reserve gave place to a torrent-like and overflowing elocution.
I marked this change in his deportment with the utmost astonishment.

So great was it, that I could hardly persuade myself that it was the same person.

A mind thus susceptible of new impressions must be, I conceived, of a wonderful texture.

Nothing was further from my expectations than that this vivacity was mere dissimulation and would take its leave of him when he left the company; yet this I found to be the case.

The door was no sooner closed after him than his accustomed solemnity returned.
He spake little, and that little was delivered with emphatical and monosyllabic brevity.
We returned home at a late hour, and I immediately retired to my chamber, not so much from the desire of repose as in order to enjoy and pursue my own reflections without interruption.
The condition of my mind was considerably remote from happiness.