author
James Bradley Thayer
1831–1902
A Harvard law professor with a lasting influence on American constitutional thought, he is best remembered for arguing that judges should be cautious about striking down legislation. His writing on evidence and legal method also helped shape modern legal education.
1 Audiobook
John Marshall
by James Bradley Thayer
About the author
Born in Haverhill, Massachusetts, in 1831, James Bradley Thayer studied at Harvard College and then Harvard Law School before beginning his legal career in Boston. He later joined the Harvard Law School faculty, where he became one of the school’s most respected teachers and scholars.
Thayer wrote on evidence, constitutional law, and the history of legal doctrine. He is especially known for his strong defense of judicial restraint—the idea that courts should overturn laws only in the clearest cases—which went on to influence major American legal thinkers and judges.
Though he died in 1902, his work continued to matter long afterward. Readers interested in the development of American law often encounter Thayer as a careful, historically minded writer whose arguments helped define debates about the proper role of courts in a constitutional system.