Leisure is one of the three greatest rewards of being a teacher. It is, unfortunately, the privilege which teachers most often misuse.
Gilbert HighetMany people have played themselves to death. Many people have eaten and drunk themselves to death. Nobody ever thought himself to death.
Gilbert HighetThe wise teacher knows that 55 minutes of work plus 5 minutes laughter are worth twice as much as 60 minutes of unvaried work.
Gilbert Highet