Facts exist independently of faith, feelings, or consensus; only reason—grounded in observation, logic, and evidence—reveals what’s true and good, making rational thinking the path to both personal happiness and political freedom.
On Solid Ground is the hub for content from OSI fellows and affiliates, along with announcements about OSI’s programs and events. Here, you’ll find links to our team’s articles, videos, and other materials published across various platforms. And you’ll discover opportunities to support and engage with our global community.
Latest from OSI
Philosophy
Zachary Porcu and Craig Biddle on the Foundations of Knowledge
Craig had a thoughtful discussion with Zachary Porcu on the source and nature of knowledge.
Philosophy
Michael Huemer and Craig Biddle Discuss Ethical Intuitionism and Rational Egoism
Craig recently spoke with philosopher Michael Huemer about the nature and foundations of ethics.
Art & Culture
Sunrise on the Reaping and the Causality Confusion
Angel dives into the ideas behind Sunrise on the Reaping and why philosophy isn’t just for books.
Politics & Liberty
What Even Is Cancel Culture?
Kiyah looks at how a tool once used to call out bad behavior got twisted into a shield—protecting harmful ideologies under the banner of “free speech.”
