The well-known theologian Charles Hodge wrote about his early years at Princeton: "It was my privilege to be the pupil-assistant of Professor Joseph Henry, the illustrious scientist. When, for the first time, electric signals were sent from point to point, the earth itself being used for the return current, Professor Henry put me at one end of the circuit, while he stood directing the experiments at the other. I can well remember the wonderful care with which he arranged them. Very often, when the testing moment came, he would raise his hand in adoring reverence and call upon me to uncover my head and worship in silence. He would say, &ls;Because God is here, I am about to ask Him a question.'"