What makes something remain itself?
The Ship of Theseus asks whether an object is still the same object after every part has gradually been replaced.
Build a mind you’re proud of.
Daily Philosophy learning cards
Big questions, clearer thinking. Explore a short explanation, an everyday example and a question you can answer from memory.
The Philosophy collection currently has 8 written cards. The daily app introduces written ideas and revisits earlier cards once the collection is complete. Source previews offer additional reading.
A conclusion needs a route
A deductive argument is valid when true premises would guarantee its conclusion.
Good structure also needs true starting points
A sound deductive argument is valid and has true premises.
Required does not mean enough
A necessary condition must be present; a sufficient condition guarantees the result.
One ethical lens looks at outcomes
Consequentialism evaluates actions by their consequences.
Another ethical lens asks about duties
Deontological ethics gives duties or constraints a central role.
Ethics can ask who you are becoming
Virtue ethics emphasises character and cultivated qualities.
Confidence is not the same as knowledge
Epistemology studies knowledge, justification and belief.