| Over the years, my work has been guided, stimulated, challenged, motivated, and rewarded from two major sources. The fi rst source has been my students and collaborators. They have asked questions, posed problems, and challenged ideas. They have been, in many cases, collaborators in theory and conceptual developments. The second source of motivation has been from the patients who have sought my help for coping with problems large and small. I owe both groups thanks for propelling me forward. What I have said on many occasions is that we, as a science, are limited only by our lack of ability to think clearly, see new connections, observe closely, or to be open to new formulations and conceptual formulations. |
