Abstract
I AM GRATEFUL to Dean Dougherty and his colleagues for inviting me to this celebration of Paul Weiss's birthday. I admire and care for Paul Weiss, and I have learned from him. I have also learned because of him. Even now, years after my graduate studies, he is a familiar, a benign, but of course not always a gentle goad to my thoughts. Just the other day--I suppose Paul thought I was becoming too comfortable--he added a postscript to a short note, urging me to hurry up to become seventy, because seventy is so fine a time to philosophize.