Lawyer and scholar who has gained fame for his expertise in constitutional law, including in litigation in front of the Supreme Court. He has worked as a Carl M. Loeb University law professor as Harvard Law School, and helped to draft South Africa and the Czech Republic.
He graduated summa cum laude from Harvard University in 1962 in mathematics at age 20. He later earned his honors JD from Harvard Law School in 1966, and soon after clerked for the US Supreme Court.
He earned his eleventh honorary degree upon delivering the commencement address for Columbia University's class of 2013. He received a degree honoris causa from the Government of Mexico in 2011, and became the first American ever to receive one.
He shares two children named Mark and Kerry with his ex-wife Carolyn.