he seems to have laid aside the old forms of them. As he proceeds he makes
for himself new modes of expression more akin to the Aristotelian logic.

Yet amid all these varieties and incongruities, there is a common meaning
or spirit which pervades his writings, both those in which he treats of the
ideas and those in which he is silent about them. This is the spirit of
idealism, which in the history of philosophy has had many names and taken
many forms, and has in a measure influenced those who seemed to be most
averse to it. It has often been charged with inconsistency and
fancifulness, and yet has had an elevating effect on human nature, and has
exercised a wonderful charm and interest over a few spirits who have been
lost in the thought of it. It has been banished again and again, but has
always returned. It has attempted to leave the earth and soar heavenwards,
but soon has found that only in experience could any solid foundation of
knowledge be laid. It has degenerated into pantheism, but has again
emerged. No other knowledge has given an equal stimulus to the mind. It
is the science of sciences, which are also ideas, and under either aspect
require to be defined. They can only be thought of in due proportion when
conceived in relation to one another. They are the glasses through which
the kingdoms of science are seen, but at a distance. All the greatest
minds, except when living in an age of reaction against them, have
unconsciously fallen under their power.

The account of the Platonic ideas in the Meno is the simplest and clearest,
and we shall best illustrate their nature by giving this first and then
comparing the manner in which they are described elsewhere, e.g. in the
Phaedrus, Phaedo, Republic; to which may be added the criticism of them in
the Parmenides, the personal form which is attributed to them in the
Timaeus, the logical character which they assume in the Sophist and
Philebus, and the allusion to them in the Laws. In the Cratylus they dawn