Which educator wanted to reform prisons and provide for the mentally ill

Dear (name of school official),

One problem that I've noticed occurs frequently at (name of your school) is students arriving late.  When students arrive late to school, it interrupts limited class time, which then is negative, even for the students who showed up to class on time.  A potential solution for this problem could be an award system.  Perhaps after a semester without being tardy, a student could earn a free period.  

Thank you for considering my suggestion, and for helping to make our school a better place.

Sincerely, (your name)