PLZZZZ HELLLP

Which sentence from the text of "The Bet" best expresses the lawyer's development in the story?

"'You have lost your reason and taken the wrong path. You have taken lies for truth, and hideousness for beauty.'"
"'Your books have given me wisdom. All that the unresting thought of man has created in the ages is compressed into a small compass in my brain.'"
"His hair was already streaked with silver, and seeing his emaciated, aged-looking face, no one would have believed that he was only forty."
"He threw himself eagerly into these studies—so much so that the banker had enough to do to get him the books he ordered."