"The 50-50-90 rule: Anytime you have a 50-50 chance of getting something right, there's a 90% probability you'll get it wrong."

"The average dog is a nicer person than the average person."

"The average bright young man who is drafted hates the whole business because an army always tries to eliminate the individual differences in men."

"One of the most glorious messes in the world is the mess created in the living room on Christmas day. Don't clean it up too quickly."

"Part of the inhumanity of the computer is that, once it is competently programmed and working smoothly, it is completely honest."

"The medium is the message. This is merely to say that the personal and social consequences of any medium - that is, of any extension of ourselves - result from the new scale that is introduced into our affairs by each extension of ourselves, or by any new technology."

"In the next 10 years, I expect at least five billion people worldwide to own smartphones, giving every individual with such a phone instant access to the full power of the Internet, every moment of every day."

"Any new technology tends to go through a 25-year adoption cycle."