text:  For this reason clearly--true philosophy is not merely sense-derived and material like the French philosophy of Helvetius nor altogether ideal like that of Plotinus and the pious old mathematical visionaries at Alexandria; but it stands on mother earth like old Antaeus drinking strength therefrom and filches fire at the same time Prometheus-like from heaven feeding men with hopes--not as Aeschylus says altogether "blind " ([Greek: tuphlas d eu autois eloidas katokioa)] but only blinking