<font size="4" face="Times New Roman"><font size="4" face="Times New Roman">``Suppose that you and I were sitting in a quiet room overlooking a garden, chatting and sipping at our cups of green tea while we talked about something that had happened a long while ago, and I said to you, "That afternoon when I met so-and-so . . . was the very best afternoon of my life, and also the very worst afternoon.``I expect you might put down your teacup and say, "Well, now, which was it? Was it the best or the worst? </font></font>