Book 6.16

I might go on for ever collecting instances to prove that valuable things are sold at a low price. What then? why is it that I owe something extra both to my physician and to my teacher, and that I do not acquit myself of all obligation to them by paying them their fee? It is because they pass from physicians and teachers into friends, and lay us under obligations, not by the skill which they sell to us, but by kindly and familiar good will. If my physician does no more than feel my pulse and class me among those whom he sees in his daily rounds, pointing out what I ought to do or to avoid without any personal interest, then I owe him no more than his fee, because he views me with the eye not of a friend, but of a commander. Neither have I any reason for loving my teacher, if he has regarded me merely as one of the mass of his scholars, and has not thought me worthy of taking especial pains with by myself, if he has never fixed his attention upon me, and if when he discharged his knowledge on the public, I might be said rather to have picked it up than to have learnt it from him. What then is our reason for owing them much? It is, not that what they have sold us is worth more than we paid for it, but that they have given something to us personally. Suppose that my physician has spent more consideration upon my case than was professionally necessary; that it was for me, not for his own credit, that he feared: that he was not satisfied with pointing out remedies, but himself applied them, that he sat by my bedside among my anxious friends, and came to see me at the crises of my disorder; that no service was too troublesome or too disgusting for him to perform; that he did not hear my groans unmoved; that among the numbers who called for him I was his favourite case; and that he gave the others only so much time as his care of my health permitted him: I should feel obliged to such a man not as to a physician, but as to a friend. Suppose again that my teacher endured labour and weariness in instructing me; that he taught me something more than is taught by all masters alike; that he roused my better feelings by his encouragement, and that at one time he would raise my spirits by praise, and at another warn me to shake off slothfulness: that he laid his hand, as it were, upon my latent and torpid powers of intellect and drew them out into the light of day; that he did not stingily dole out to me what he knew, in order that he might be wanted for a longer time, but was eager, if possible, to pour all his learning into me; then I am ungrateful, if I do not love him as much as I love my nearest relatives and my dearest friends.