Carneades

Carneades was so besotted with it, that he would not find time so much as to comb his head or to pare his nails.

Clitomachus affirmed "That he could never discover by Carneades's writings what opinion he was of."

Carneades left no written works; his opinions seem to have been systematized by Clitomachus.

Carneades, practically a 5th-century sophist, is the most important of the ancient sceptics.

The general line of argument followed by Carneades anticipates much in modern thought.