If in each college, the tutor or teacher, who was to instruct each student in all arts and sciences, should not be voluntarily chosen by the student, but appointed by the head of the college; and if, in case of neglect, inability, or bad usage, the student should not be allowed to change him for another, without leave first asked and obtained; such a regulation would not only tend very much to extinguish all emulation among the different tutors of the same college, but to diminish very much, in all of them, the necessity of diligence and of attention to their respective pupils.