David Gries is a renowned Professor Emeritus at Cornell University, having achieved unparalleled success and professional experience in his field. He is an expert in computer science and has made significant contributions to the development of programming languages like Algol and Pascal. He has also published numerous articles on topics such as computer algorithms, program logic, and programming language semantics.

Gries has been recognized with numerous honors and awards throughout his career, including the prestigious ACM SIGPLAN Programming Languages Achievement Award in 1996. He has been a popular lecturer and mentor to many aspiring computer scientists and has inspired countless students to pursue careers in the field.

In addition to his academic work, Gries has also been involved in various research and development projects, including the creation of the XPL programming language and the development of the Cedar programming environment. He is also the author of several influential textbooks on computer science, including "The Science of Programming," which has become a classic in the field.

Overall, David Gries is a visionary computer scientist whose immense contributions have shaped the field in profound ways. His work has inspired a generation of students and researchers and will continue to influence the world of computer science for years to come.