Invention is the most important product of man's creative brain. The ultimate purpose is the complete mastery of mind over the material world, the harnessing of human nature to human needs.
This is a great fact: strength is life; weakness is death. Strength is felicity, life eternal, immortal; weakness is constant strain and misery, weakness is death.
We call ours a utilitarian age, and we do not know the uses of any single thing. We have forgotten that water can cleanse, that fire can purify, and that the Earth is mother to us all.
Look not mournfully into the past, it comes not back again. Wisely improve the present, it is thine. Go forth to meet the shadowy future without fear and with a manly heart.