Giotto born again, starting where death had cut short his advance, instantly making his own all that had been gained during his absence, and profiting by the new conditions, the new demands—imagine such an avatar, and you will understand Masaccio.
Giotto we know already, but what were the new conditions, the new demands? The mediæval skies had been torn asunder and a new heaven and a new earth had appeared, which the abler spirits were already inhabiting and enjoying. Here new interests and new values prevailed.