Read it through once

While these internal revolutions were going on, her external life had been as busy and uneventful as usual; and if she sometimes looked serious or a little sad no one observed it but Professor Bhaer. He did it so quietly that Jo never knew he was watching to see if she would accept and profit by his reproof; but she stood the test, and he was satisfied; for, though no words passed between them, he knew that she had given up writing. Not only did he guess it by the fact that the second finger of her right hand was no longer inky, but she spent her evenings downstairs now, was met no more among newspaper offices, and studied with a dogged patience, which assured him that she was bent on occupying her mind with something useful, if not pleasant.