life, and that other life of refined pleasure and action in the open
places of the world, are each of them confined to its own circle of
ideas, and those who prosecute either of them are generally little
curious of the thoughts of others. There come, however, from time to
time, eras of more favourable conditions, in which the thoughts of men
draw nearer together than is their wont, and the many interests of the
intellectual world combine in one complete type of general culture. The
fifteenth century in Italy is one of these happier eras; and what is
sometimes said of the age of Pericles is true of that of Lorenzo:--it is
an age productive in personalities, many-sided, centralised, complete.
Here, artists and philosophers and those whom the action of the world
has elevated and made keen, do not live in isolation, but breathe a
common air, and catch light and heat from each other's thoughts. There
is a spirit of general elevation and enlightenment in which all alike
communicate. It is the unity of this spirit which gives unity to all the
various products of the Renaissance; and it is to this intimate alliance
with mind, this participation in the best thoughts which that age
produced, that the art of Italy in the fifteenth century owes much of
its grave dignity and influence.

I have added an essay on Winckelmann, as not incongruous with the
studies which precede it, because Winckelmann, coming in the eighteenth
century, really belongs in spirit to an earlier age. By his enthusiasm
for the things of the intellect and the imagination for their own sake,
by his Hellenism, his life-long struggle to attain to the Greek spirit,
he is in sympathy with the humanists of an earlier century. He is the
last fruit of the Renaissance, and explains in a striking way its motive
and tendencies.