Will tolerance be mutual here? Will my son tolerate my response to his music? Well, if he finds this difference in musical taste objectionable, if he has good reason to think that it is, and if the virtue resides in his soul, then yes, I suppose he will. But there’s no guarantee in this. One or more of these conditions might fail to obtain, and if so, my tolerance might be met with some other response: indifference, anger, contempt, and so on. So it is with justice and its parts: although geared to goods shared in common, at times they work alone. Still, it’s our shared life that my tolerance regards, and I have to assume that he too will contribute to the maintenance of that life. I have to assume that he will tolerate me as difference, objection, and justice demand. At the very least, I have to hope that he will come to tolerate as I do, or at least aspire to. (It's this hope that justifies our talk of tolerating the colicky cries of an infant.) Indeed, if it happens that I proceed without this hope and expectation, then it’s not exactly clear that it's a society that we share or tolerance that I exhibit. And note, my hope is that he will tolerate as he is tolerated, not that he will share my taste in music.