Sir Karl Popper (1902–94) is certainly among the most influential philosophers of science in the 20th century, as well as an important critic of Marxism, but his reputation is still under ...

I began to discern the paradox lurking at the heart of Karl Popper's career when, prior to interviewing him in 1992, I asked other philosophers about him. Queries of this kind usually elicit dull, ...

If you ask philosophically minded researchers – in the Anglophone world at least – why it is that science works, they will almost always point to the philosopher Karl Popper (1902-94) for vindication.

In the soft light of an antipodean afternoon, Graham Macdonald is careful to impress his academic orientation upon a visitor. Mr. Macdonald is, as he says, director of the department of philosophy and ...

The philosopher Karl Popper pointed out that most early practition­­ers of science were justificationists. They didn’t just seek out any old knowledge; they were on the hunt for justified knowledge.