Every beautiful thought is a teacher; every noble line speaks to the brain and heart. how does ingersoll's metaphor "every beautiful thought is a teacher" affect the meaning of the interview? it suggests that a playwright's words can inspire an audience to think about social issues. it indicates that a playwright gives clues about what will happen next in the play. it conveys the idea that people can learn from the thoughts they have. it implies that a playwright makes direct statements about social issues.