The myth of unlimited production brings war in its train as inevitably as clouds announce a storm.

A world with a sudden limit on air travel would be tremendously different from the one we live in now.

Rocket scientists agree that we have about reached the limit of our ability to travel in space using chemical rockets. To achieve anything near the speed of light we will need a new energy source and a new propellant. Nuclear fission is not an option.

Waste is worse than loss. The time is coming when every person who lays claim to ability will keep the question of waste before him constantly. The scope of thrift is limitless.

We've protected thousands of people in Libya we have not seen a single U.S. casualty there's no risks of additional escalation. This operation is limited in time and in scope.

It's only when we truly know and understand that we have a limited time on earth - and that we have no way of knowing when our time is up we will then begin to live each day to the fullest as if it was the only one we had.

There's a consistency in my work that pops up independent of the limitations of the technology.

Digital imaging has untied our hands with regards to technical limitations. We no longer have to be arbiters of technology we get to participate in the interpretation of technology into creative content.

The U.S. uses most of its oil for transportation. We can limit U.S. demand for oil by requiring automakers to use the technology that already exists to improve fuel economy - technology that the automakers refuse to bring into the market despite societal demand.

It would appear that we have reached the limits of what it is possible to achieve with computer technology although one should be careful with such statements as they tend to sound pretty silly in 5 years.