But as soon as he is interested, and opens his eyes upon you, the change is like magic.
There is a flash in his glance, a violent contortion in his frown, an exquisite humour in his sneer, and a sweetness and brilliancy in his smile, beyond anything that ever I witnessed.

A person who had seen him in only one state would not know him if he saw him in another.

For he has not, like Brougham, marked features which in all moods of mind remain unaltered.

The mere outline of his face is insignificant.

The expression is everything; and such power and variety of expression I never saw in any human countenance, not even in that of the most celebrated actors.