[3] Fabricius, Cap. XIV. 7.

[4] _Hyp._ I. 36.

[5] Fabricius on _Hyp._ I. 36; Cap. XIV. G.

[6] Diog. IX. 11, 79-108.

[7] Aristocles _Euseb. praep. ev._ X. 14, 18.

[8] Fabricius on _Hyp._ I. 36.

All authorities unite in attributing to Aenesidemus the work of
systematizing and presenting to the world the ten Tropes of
[Greek: epochê]. He was the first to conceive the project of
opposing an organized philosophical system of Pyrrhonism to the
dogmatism of his contemporaries.[1] Moreover, the fact that
Diogenes introduces the Tropes into his life of Pyrrho, does not
necessarily imply that he considered Pyrrho their author, for
Diogenes invariably combines the teachings of the followers of a
movement with those of the founders themselves; he gives these
Tropes after speaking of Aenesidemus' work entitled _Pyrrhonean
Hypotyposes_, and apparently quotes from this book, in giving at
least a part of his presentation of Pyrrhonism, either directly
or through, the works of others. Nietzsche proposes a correction
of the text of Diogenes IX. 11, 79, which would make him quote the
Tropes from a book by Theodosius,[2] author of a commentary on
the works of Theodas. No writer of antiquity claims for the
Tropes an older source than the books of Aenesidemus, to whom