I've studied him ever since he was a child and have always found him developing.

I really consider that one of the main things that has enabled me to master the difficult science of character-reading was the livid interest I always felt in that boy and the baffling inscrutabilities of his ways and inspirations." Tracy was not hearing a word.

His spirits were gone, he was desolate.
"Yes, a most wonderful character.

Concealment--that's the basis of it.
Always the first thing you want to do is to find the keystone a man's character is built on--then you've got it.

No misleading and apparently inconsistent peculiarities can fool you then.