Aristotle
Who was Aristotle, what did he write, and why does a thinker from the fourth century BCE still shape how we …
Reference Desk
Democritus
Twenty-four centuries before the periodic table, Democritus of Abdera argued that everything – rocks, …
Heraclitus
Who was Heraclitus, what did he mean by saying that everything flows, and why has this obscure aristocrat from …
Plato
Who was Plato, what did he write, and why does a thinker who died almost 2,400 years ago still shape how we …
Plato: Lysis
A guide to Plato’s Lysis, the first philosophical work on friendship: its setting, Socrates' …
Pythagoras
Who was Pythagoras, what did he actually teach, and how did a wandering religious leader from the sixth …
Socrates
Who was Socrates, why did Athens put him to death, and how did a man who claimed to know nothing become the …