BIOGRAPHICAL

HISTORY OF
OF PHILOSOPHY,

FROM ITS ORIGIN IN GREECE DOWN TO

THE PRESENT DAY.

BY

GEORGE HENRY LEWES.

"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."-GOETHE.

"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.

LIBRARY EDITION,

MUCH ENLARGED AND THOROUGHLY REVISED.

VOL. II.

NEW YORK

D. APPLETON AND COMPANY,

346 & 348 BROADWAY.

M DCCC LVII.