John Ruskin was saying that he could tell what a person was like most clearly by asking them, "What do you like." Objectors replied, "Nay, we need rather to ask what these people and children do, than what they like. If they do right, it is no matter that they like what is wrong; and if they do wrong, it is no matter that they like what is right. Doing is the great thing; and it dos not matter that the man likes drinking, so long as he doesn't drink, nor that the little girl likes to be kind to her canary, if she will not learn her lessons; nor that the little boy likes throwing stones at the sparrows, if he goes to the Sunday School." Indeed, for a short time, and in a provisional sense, this is true. For if, resolutely, people do want is right, in time they come to like doing it. But they are only in a right moral state when they have come to like doing it; and as long as they don't like it, they are still in a vicious state. The man is not in health of body who is always thinking of the bottle in the cupboard, though he bravely bears his thirst; but the man who heartily enjoys water in the morning and wine in the evening, each in its proper quantity and time, is in health. And the entire object of true education is to make people not merely do the right things, but enjoy the right things -- not merely industrious, but to love industry; not merely learned, but to love knowledge; not merely pure, but to love purity; not merely just, but to hunger and thirst after justice."  

I like that.