If any person with whom we are associated or have to do, exhibits unpleasant or annoying qualities, we have only to ask ourselves whether or not this person is of so much value to us that we can put up with frequent and repeated exhibitions of the same qualities in a somewhat aggravated form.[1] In case of an affirmative answer to this question, there will not be much to be said, because talking is very little use. We must let the matter pass, with or without some notice; but we should nevertheless remember that we are thereby exposing ourselves to a repetition of the offence. If the answer is in the negative, we must break with our worthy friend at once and forever; or in the case of a servant, dismiss him. For he will inevitably repeat the offence, or do something tantamount to it, should the occasion return, even though for the moment he is deep and sincere in his assurances of the contrary. There is nothing, absolutely nothing, that a man cannot forget,--but not _himself, his own character_. For character is incorrigible; because all a man's actions emanate from an inward principle, in virtue of which he must always do the same thing under like circumstances; and he cannot do otherwise. Let me refer to my prize essay on the so-called _Freedom of the Will_, the perusal of which will dissipate any delusions the reader may have on this subject. [Footnote 1: To _forgive and forget_ means to throw away dearly bought experience.] To become reconciled to a friend with whom you have broken, is a form of weakness; and you pay the penalty of it when he takes the first opportunity of doing precisely the very thing which brought about the breach; nay, he does it the more boldly, because he is secretly conscious that you cannot get on without him. This is also applicable to servants whom you have dismissed, and then taken into your service again. For the same reason, you should just as little expect people to continue to act in a similar way under altered circumstances. The truth is that men alter their demeanor and sentiments just as fast as their interest changes; and their resign in this respect is a bill drawn for short payment that the man must be still more short-sighted who accepts the bill without protesting it. Accordingly, suppose you want to know how a man will behave in an office into which you think of putting him; you should not build upon expectations, on his promises or assurances. For, even allowing that he is quite sincere, he is speaking about a matter of which he has no knowledge. The only way to calculate how he will behave, is to consider the circumstances in which he will be placed, and the extent to which they will conflict with his character.