Basically, books were a luxury item before the printing press.

The Protestant Reformation had a lot to do with the printing press, where Martin Luther's theses were reproduced about 250,000 times, and so you had widespread dissemination of ideas that hadn't circulated in the mainstream before.

The printing press is the greatest weapon in the armoury of the modern commander.

Every technology, including the printing press, comes at some price.

What gunpowder did for war the printing press has done for the mind.

Our printing press is the Internet. Our coffee houses are social networks.