ten o'clock precisely
`` You do n't look after yourself . '' `` It is n't that , '' Mrs. Delarayne rejoined . `` Nobody takes greater care of themselves than I do . I go to bed every night at ten o'clock precisely , and read until half-past two . What more can I do ? '' Lord Henry blinked rapidly , and surveyed her with an air of deep interest . `` And you say you are leaving town ? ''