Today, there are over 7,000 languages spoken throughout the world. They may sound different, but in every case, they're drawing on the same regions of the brain. If you had told me that stone-tool-making had something to do with our ability to speak, I would have said you've got rocks in your head, but the latest studies indicate that once Homo erectus got creative with stone, our brains were on the way to inventing the most powerful tool of all: language.

Just as words in their proper places form sentences, each individual strike must be done in the proper order to get the desired result: a flat stone blade.

The Kindle is just the razor. The books are the blades - ka-ching!

What is innovation if not our ticket to every business interest in the world? Its the ticket to solving the worlds problems - the energy problems, the pollution problems, the global warming problems. If it isnt for science and engineering, how will we compete in the new world?

If you continue to improve a product enough, you'll eventually ruin it.

If Apple ever lowers the iPod's price and develops Windows software for it, watch out: the invasion of the iPod people will surely begin in earnest.

There's one thing that shows up on all of the lists of what makes us human: language. Our ability to share our thoughts and complex information with others far surpasses all the barks, squeaks and growls of our animal friends.