[1] The society held annual meetings where student shared and discussed papers that were later published in Philosoph.

The emblem of Phi Sigma Tau is in the shape of a pentagon; each of the five angles contains a symbol that represents one of the five streams of world thought: Chinese, Indian, Islamic, Hebrew, and Greek.

[1] The seal of Phi Sigma Tau is the reverse side of the Athenian silver tetradrachm, which bears the owl of Pallas Athene, the goddess of wisdom and rational inquiry, an olive spray, a small crescent, and the name of Athena in Greek.

[1] The motto of Phi Sigma Tau is Φιλούντων σοφίαν τιμή (Philoúnton sophían timé), Greek for "the honor of those who love wisdom.

The current membership requirements are variable from chapter to chapter, but in general, undergraduate students are eligible for active membership if they have completed two semesters of college, rank in the upper 35% of their class, and have completed at least two-semester courses in philosophy with an average overall grade which is greater than the second highest grade of the working scale.