I'd been taking things apart and inventing things since I was a little kid… I still have memories as a child trying to really understand how things work.

Even though you can't get along without your smartphone, there are not many essential services on your smartphone. They're mostly convenience; you could live without it. Essential means you die without it. A gadget that warns you're about to have a heart attack - that's essential. We're about to go into that phase with smartphones.

My rule is, if you want to build something that does all things for all people, it's not going to work real well.

Martin Cooper Quotes