Read it through once

He found the Doctor reading in his arm-chair at a window. The energy which had at once supported him under his old sufferings and aggravated their sharpness, had been gradually restored to him. He was now a very energetic man indeed, with great firmness of purpose, strength of resolution, and vigour of action. In his recovered energy he was sometimes a little fitful and sudden, as he had at first been in the exercise of his other recovered faculties; but, this had never been frequently observable, and had grown more and more rare.