Quote by Johannes Gutenberg
"In the marriage of letter and metal lies the secret of human progress."
More from Johannes Gutenberg
"The art of printing will so spread knowledge that the struggle against ignorance will end in victory."
"I am but a humble servant of the art of printing, yet I believe this invention will change the world."
"The printed word is the greatest gift to mankind, for it carries truth across all boundaries."
"Through the press, man's knowledge becomes immortal."