Book 4.36

I shall nevertheless look into the matter, and consider what the value of the thing promised may be. If it be trifling, I shall give it, not because you are worthy of it, but because I promised it, and I shall not give it as a present, but merely in order to make good my words and give myself a twitch of the ear. I will punish my own rashness in promising by the loss of what I gave. "See how grieved you are; mind you take more care what you say in future." As the saying is, I will take tongue money from you. If the matter be important, I will not, as Maecenas said, let ten million sesterces reproach me. I will weigh the two sides of the question one against the other: there is something in abiding by what you have promised; on the other hand, there is a great deal in not bestowing a benefit upon one who is unworthy of it. Now, how great is this benefit? If it is a trifling one, let us wink and let it pass; but if it will cause me much loss or much shame to give it, I had rather excuse myself once for refusing it than have to do so ever after for giving it. The whole point, I repeat, depends upon how much the thing given is worth: let the terms of my promise be appraised. Not only shall I refuse to give what I may have promised rashly, but I shall also demand back again what I may have wrongly bestowed: a man must be mad who keeps a promise made under a mistake.