I think society influenced Shakespeare to write ‘All the World's a stage poem. I think he was thinking about the way everyone contribute to society by playing many parts, for instance some people are lawyers, doctors, teachers, mother, father, and ect.. (a father can be a doctor or a mother can be a lawyer.) Furthermore, people actions changes depending on their setting or companies. We behave and speak differently when we are with friends and family versus when we are with coworkers or strangers. our mannerisms and attitudes are constantly changing based on the scenarios and sceneries
