As well might it be urged that the wild & uncultivated tree, hitherto yielding sour & bitter fruit only, can never be made to yield better: yet we know that the grafting art implants a new tree on the savage stock, producing what is most estimable both in kind & degree.
This is a very insightful metaphor that shows that demonstrates that education depends on the student. Just as cultivation that is successful for one tree might be unsuccessful for another, depending on many variables, the way one student learns and is educated might not work for another student, as people are all vastly different. This is important to realize, because if the aim is to educate all students, the teachers must be willing to shape their own methods. Caroline Peterson