The principles not only require companies to respect the environment but also to market safe products and services and accept responsibility for any environmental damage they may cause.

In Europe, the right of revolution may be traced back to Magna Carta, an English charter issued in 1215, that required the King to renounce certain rights and accept that his will could be bound by the law.

Unlike Priceline, which requires users to bid for seats and accept the lowest fare offered, Hotwire will let them select an actual fare for the desired route.

It requires the North to swallow hard and accept investment and a bailout by South Korea.

The terms forced upon Cetshwayo required him to disband his army and accept British authority.

Companies also require renters to pay high insurance fees or accept liability for accident damage, regardless of fault.

State law requires that the state accept responsibility for its prisoners "forthwith."

Priceline, another online travel site, for example, requires users to bid for seats and accept the lowest fare offered.

To replace welfare, the state would increase its education and training program for women in poverty, requiring them to find jobs themselves or accept work assigned them by the State Welfare Department.

But here, workers take responsibility for casting pieces and machining them into their final shape, a process that requires them to learn more skills and accept final responsibility for quality.