Dear Ellis, Since we historians are always consulting documents from the past, I thought it most appropriate to do just that as we celebrate your upcoming ninetieth birthday. My source today is almost 48 years old-~more than half your age. it dates from September 1 960 and has until now been kept secret from the world. ft is a diary entry I composed shortly after coming to study with you here in Cincinnati nearly half a century ago. The following is its text: “This afternoon I had my first talk of the year with Rivkin, Aside from setting down a program ([courses on) Renaissance and Reformation and Nineteenth~ Century Europe at UC; two Rivkin courses plus a readings course with Spicehandler at HUC), it was a stimulating intellectual experience, it brought back memories of Collingwoodian historiography—the reliving of the experiences of the historical character. Rivkin thinks that emotions as well as thoughts can be relived and that Collingwood would have admitted it had he lived to feel the full impact of Freud. Rivkin says there is no such thing as irrationality, only partial rationalities or degrees of rationality. Le. an act once serving a ~rationaP purpose, repeated out of context compulsorily, is commonly called irrationaL Rivkin~s tendency to theorize widely and sometimes wildly he justifies by his insistence that since the historian is bound to err anyway, he might as well err grandly.” Ellis, although I have not always followed in your historiographical footsteps, I have always admired your ability and willingness to take theoretical risks. And therefrom has emerged for me an ever stimulating relationship over these many years of friendship. Moreover, more than one of those risky theories has proven to be anything but an error. I join your family and friends in wishing you a very happy ninetieth birthday and many more years of untrammeled thought. Your student and friend, Michael Meyer