Dear teacher who said he does his job only for the money and tried to convince his students to do the same when they grow up , You 're wrong . There is nothing more beautiful than someone who believes he can do something to improve the rotten world we live in . Let us believe in mankind while we 're still young . Let us keep our ideals and think we can change something while we 're still sitting at the classroom , taking notes and talking like we know the world outside .
According to the above context, answer the following question.
What kind of person is the teacher ?


He 's jaded from all he 's seen and experienced .