Intelligence is the only light. It enables us to keep to the
highway, to avoid the obstructions, and to take advantage of the
forces of nature. It is the only lever capable of raising mankind.
To develop the brain is to civilize the world. Intelligence reeves
the heavens of winged and frightful monsters — drives ghosts and
leering fiends from the darkness, and floods with light the
dungeons of fear.
Robert Green Ingersoll – “Truth” (1897)