"Man is not born to solve the mystery of Existence; but he must,
nevertheless, attempt it, in order that he may learn how to keep within
the limits of the Knowable."-GöтHE.

"For I doubt not through the ages one increasing purpose runs,
And the thoughts of men are widened by the process of the suns."
TENNYSON.

SERIES I. ANCIENT PHILOSOPHY.

IN TWO VOLUMES.-VOL. II.

LONDON:

CHARLES KNIGHT & Co., LUDGATE STREET.
1845..

CHAP. I. EUCLID AND THE MEGARIC SCHOOL.
CHAP. II. ARISTIPPUS AND THE CYRENAICS.
CHAP. III. ANTISTHENES AND DIOGENES: THE

CYNICS.