Concern for man and his fate must always form the chief interest of all technical endeavors. Never forget this in the midst of your diagrams and equations.
I admire machinery as much is any man, and am as thankful to it as any man can be for what it does for us. But it will never be a substitute for the face of a man, with his soul in it, encouraging another man to be brave and true.
He who joyfully marches to music in rank and file has already earned my contempt. He has been given a large brain by mistake, since for him the spinal cord would suffice.