One ought to proportion one’s thanks to the importance of the benefit received, and to use the phrases, “You have laid more of us than you think under an obligation,” for everyone likes to find his good actions extend further than he expected. “You do not know what it is that you have done for me; but you ought to know how much more important it is than you imagine.” It is in itself an expression of gratitude to speak of oneself as overwhelmed by kindness; or “I shall never be able to thank you sufficiently; but, at any rate, I will never cease to express everywhere my inability to thank you.”