December 1st Are Skeptics Faulty Thinkers? George Berkeley (1685–1753). Three Dialogues Between Hylas and Philonous in Opposition to Sceptics and Atheists. Vol. 37, pp. 189-199 of The Harvard Classics Offhand we say a skeptic is one who doubts everything. But does he? And are his doubts caused by too much learning, or too little? Berkeley presents both sides of skepticism.