most people forfeit their lives by doing what society tells them to do.
Explanation:
Thoreau has given his opinions and his ideas, thoughts about a lot of topics. Some of the topics that he has written about are civil disobedience, individuality, conformity, progress and so on.
He always wanted a society which was free of any kind of discrimination, is progressive and he wanted that people should enjoy their lives and live fully without using and depending much upon the materialistic things. They should be considered unnecessary.