The University Philosophical Society | 367 followers on LinkedIn. Leaders in debate and discourse at Trinity College Dublin since 1683. | Since its foundation in 1683, the Phil has been a staple of student life in Trinity College. Now in 2025, 10,000+ members of the student body and staff comprise our membership making us the largest student society on campus. Primarily a debating society, the Phil has consistently acted as a forum for the radical debate of issues that both reflect and affect society.