Therefore, they say that this notion is implanted in our minds naturally and instinctively, as it were; so that we _feel_ that the one is to be sought for, and the other to be avoided. Others, however, (and this is my own opinion too,) assert that, as many reasons are alleged by many philosophers why pleasure ought not to be reckoned among goods, nor pain among evils, we ought not to rely too much on the goodness of our cause, but that we should use arguments, and discuss the point with precision, and argue, by the help of carefully collected reasons, about pleasure and about pain. X. But that you may come to an accurate perception of the source whence all this error originated of those people who attack pleasure and extol pain, I will unfold the whole matter; and I will lay before you the very statements which have been made by that discoverer of the truth, and architect, as it were, of a happy life. For no one either despises, or hates, or avoids pleasure itself merely because it is pleasure, but because great pains overtake those men who do not understand how to pursue pleasure in a reasonable manner. Nor is there any one who loves, or pursues, or wishes to acquire pain because it is pain, but because sometimes such occasions arise that a man attains to some great pleasure through labour and pain. For, to descend to trifles, who of us ever undertakes any laborious exertion of body except in order to gain some advantage by so doing? and who is there who could fairly blame a man who should wish to be in that state of pleasure which no annoyance can interrupt, or one who shuns that pain by which no subsequent pleasure is procured? But we do accuse those men, and think them entirely worthy of the greatest hatred, who, being made effeminate and corrupted by the allurements of present pleasure, are so blinded by passion that they do not foresee what pains and annoyances they will hereafter be subject to; and who are equally guilty with those who, through weakness of mind, that is to say, from eagerness to avoid labour and pain, desert their duty. And the distinction between these things is quick and easy. For at a time when we are free, when the option of choice is in our own power, and when there is nothing to prevent our being able to do whatever we choose, then every pleasure may be enjoyed, and every pain repelled. But on particular occasions it will often happen, owing either to the obligations of duty or the necessities of business, that pleasures must be declined and annoyances must not be shirked. Therefore the wise man holds to this principle of choice in those matters, that he rejects some pleasures, so as, by the rejection, to obtain others which are greater, and encounters some pains, so as by that means to escape others which are more formidable.