Phi Sigma Tau is the International Honor Society in Philosophy was founded in 1930 and incorporated as a nonprofit corporation in 1955. The society now has a network of over 200 chapters throughout the United States and Canada, at both public and private institutions of higher learning. The purpose of Phi Sigma Tau is to encourage interest and activity among students and to promote ties between philosophy departments in accredited institutions. Phi Sigma Tau publishes a journal, Dialogue, for student contributions in all areas of contemporary philosophical research. Other PST publications include the PST Newsletter (published three times yearly) and the National Alumni Chapter Bulletin. The PST Newsletter is sent to all students and alumni/ae members and contains news of local chapter activities. The National Alumni Chapter (NAC) provides a medium of exchange and communication for onetime PST members who desire to retain their affiliation with the Society following graduation.
Undergraduate students are eligible for active membership if they have completed three semesters or five quarters of the college course, rank in the upper thirty-five percent of their class, and have completed at least two semester courses or three quarter courses in philosophy with an average grade of over the second highest grade of the working scale.
Graduate students are eligible if they meet the requirements established for undergraduates, or if they have completed at least one-third of the residence requirements of the master’s degree with a grade average of at least half on the highest grade of the working scale and half in the second highest grade.