"The desire of excellence is the necessary attribute of those who excel. We work little for a thing unless we wish for it. But we cannot of ourselves estimate the degree of our success in what we strive for; that task is left to others. With the desire for excellence comes, therefore, the desire for approbation. And this distinguishes intellectual excellence from moral excellence; for the latter has no necessity of human tribunal; it is more inclined to shrink from the public than to invite the public to be its judge."