Each year the Department of Philosophy hosts the Philosophers Speak lecture series, in which a major philosopher is invited to present a university-wide talk on current or social issues. A number of influential figures have given the talks in recent years.
- Kwame Anthony Appiah (Princeton) - "My Cosmopolitanism"
- Harry Frankfurt (Princeton) - "Moral Responsibility"
- Paul Boghossian (NYU) - "Relativistic Views of Knowledge and Morality"
- Jeff McMahan (Rutgers) - "Proportionality in Self-Defense and War"
- Nancy Fraser (New School) - "Marketization, Social Protection, and Emancipation"
- Douglas Husak (Rutgers) - "The Morality of Drug Criminalization"
- David Chalmers (NYU) - "AI and the Singularity"
- Michele Moody-Adams (Columbia) - "The Enigma Forgiveness"
- Philip Kitcher (Columbia) - "The Role of Scientists and Dissenters in Public Debates"
- Eric Katz (NJIT) - "The Ethics of Climate Change"
- Bryan Frances (Fordham) - "The Rationality of Religious Belief"
- Simon Critchley (New School) - "Philosophical Eros"
- Matthew Liao (NYU) - "Is there a Moral Duty to Adopt?"
- Christia Mercer (Columbia) - "Feeling the Way to Truth"
- John Cooper (Princeton) - "Aristotle and Responsibility for our Actions"
- Christopher Lebron (Yale) - "The Future of Racial Morality"