The supreme end of education is expert discernment in all things--the power to tell the good from the bad, the genuine from the counterfeit, and to prefer the good and the genuine to the bad and the counterfeit.
The term "learning disability" has appeal because it implies a specific neurological condition for which no one can be held particularly responsible, and yet it escapes the stigma of mental retardation. There is no implication of neglect, emotional disturbance, or improper training or education, nor does it imply a lack of motivation on the part of the child. For these cosmetic reasons, it is a rather nice term to have around.
The true purpose of education is to cherish and unfold the seed of immortality already sown within us to develop, to their fullest extent, the capacities of every kind with which the God who made us has endowed us.
The ultimate goal of the educational system is to shift to the individual the burden of pursing his own education. This will not be a widely shared pursuit until we get over our odd conviction that education is what goes on in school buildings and nowhere else.