A Bus is a vehicle that runs twice as fast when you are after it as when you are in it.

A Bus is a vehicle in which there are always free seats when it is going in the opposite direction.

The Bus is a thing which, when you take, it is actually taking you.

A Bus is not something you take; the bus takes you.

Email lives and dies by one's subject line. Making it personal or funny can increase your open rate 10 times or more.

Email is 20-30 times more effective in generating a purchase than any other tool.

Email is a useful device for gossiping with friends when you're in the office - and still looking busy.

Email is a means of communicating with people you don't want to talk to.

Flight is impossible — Man will never fly. Not in a thousand years.

Flight is unnatural — if God had really intended men to fly, He'd make it easier to get to the airport.

Flight is, by necessity, aesthetic — a plane must be beautiful if it is to fly well.

Flight is the safest thing in the world - it's crashing that is dangerous.