their greatness. In the poetry of succeeding ages the expectations
are often exalted on Icarian wings, and fall, too much disappointed
to give a memory and a name to the oblivious pool in which they
fell.

In physical knowledge Aristotle and Theophrastus had already--no
doubt assisted by the labours of those of their predecessor whom
they criticize--made advances worthy of the maturity of science.
The astonishing invention of geometry, that series of discoveries
which have enabled man to command the element and foresee future
events, before the subjects of his ignorant wonder, and which have
opened as it were the doors of the mysteries of nature, had already
been brought to great perfection. Metaphysics, the science of man's
intimate nature, and logic, or the grammar and elementary principles
of that science received from the latter philosophers of the Periclean
age a firm basis. All our more exact philosophy is built upon the
labours of these great men, and many of the words which we employ
in metaphysical distinctions were invented by them to give accuracy
and system to their reasonings. The science of morals, or the
voluntary conduct of men in relation to themselves or others, dates
from this epoch. How inexpressibly bolder and more pure were the
doctrines of those great men, in comparison with the timid maxims
which prevail in the writings of the most esteemed modern moralists!
They were such as Phocion, and Epaminondas, and Timoleon, who formed
themselves on their influence, were to the wretched heroes of our
own age.

Their political and religious institutions are more difficult to
bring into comparison with those of other times. A summary idea
may be formed of the worth of any political and religious system,