The productivity now at universities is terrible. Tenure is a terrible idea. It keeps them around forever and they don't have to work hard.
If you think your teacher is tough wait until you get a boss. He doesn't have tenure.
A politician never forgets the precarious nature of elective life. We have never established a practice of tenure in public office.
In government offices which are sensitive to the vehemence and passion of mass sentiment public men have no sure tenure. They are in effect perpetual office seekers always on trial for their political lives always required to court their restless constituents.